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CBSE Questions for Class 11 Commerce Applied Mathematics Mathematical And Logical Reasoning Quiz 17 - MCQExams.com
CBSE
Class 11 Commerce Applied Mathematics
Mathematical And Logical Reasoning
Quiz 17
E is the son of A. D is the son of B. E is married to C. C is B's daughter. How is D related to E?
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0%
Brother
0%
Uncle
0%
Brother-in-law
0%
Father-in-law
Explanation
C is B's daughter and D is B's son.
So D is the brother of C.
E is a male married to C.
So, E is the husband of C whose brother is D.
Thus D is the brother-in-law of E.
option C.
In a certain code RAIL is written as KCTN and SPEAK is written as CGRUM How will AVOID be written in that code?
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FKQXC
0%
KQXCF
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XRXCF
0%
KQVCB
Explanation
Given,
RAIL
is written as
KCTN
and
SPEAK
is written as
CGRUM
.
Here,
all letters except the last letter are written in reverse order and then each letter moves 2 steps forward to get the code.
Similarly, AVOID is coded as:
AVOID$$\displaystyle\rightarrow$$IOVAD$$\displaystyle\rightarrow$$KQXCF
Hence, option (B) is the correct answer.
In a certain code MOTHER is written as ONHURF. How will ANSWER be written in that code?
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NBXSSE
0%
NBWRRF
0%
MAVSPE
0%
NBWTRF
Explanation
Given,
MOTHER
is written as
ONHURF.
Here, the word
'MOTHER'
is divided into three pairs of two word each and then writing each pair in the reverse order to get the word
'OMHTRE'
. Now, move the 2nd, 4th and 6th letter one step forward to get the code
ONHURF
.
Similarly, the word
ANSWER
is coded as
NBWTRF
.
Hence, option (D) is the correct answer.
If DIAMOND is coded as VQYMKLV then WEALTH is coded as
Report Question
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CUYNFR
0%
HTLAEW
0%
YCONWJ
0%
XFBMUI
Explanation
DIAMOND If a letter is $$\displaystyle n^{th}$$ place from the beginning,
VQYMKLV Coded letter is the $$\displaystyle \left ( n+1 \right )^{th}$$ place from the end.
Alphabet $$\displaystyle \rightarrow $$ A B C D E F G H I J K L M N O P Q R S T U V W X Y
Code $$\displaystyle \rightarrow $$ Y X W V U T S R Q P O N M L K J I H G F E D C B A
WEALTH $$\displaystyle \overset{Code}{\longrightarrow}$$ CUYNFR
In a certain code MENTION is written as LNEITNO How is PATTERN written in that code?
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APTTREM
0%
PTAETNR
0%
OTAETNR
0%
OTAETRN
Explanation
In the given code, the first letter M is replaced with the letter (L) which is previous to it in alphabetical order.
The remaining letters are divided in three sets of 2 letters each as EN, TI and ON. Now, the order of letter in each set is reversed to get NE, IT and NO.
In this way, MENTION is written as LNEITNO.
Similarly,
PATTERN is coded as OTAETNR.
Hence, option (C) is the correct answer.
In certain code PAPER is written as SCTGW. How is 'MOTHER' written in that code ?
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ORVLGW
0%
PQVJGT
0%
PQXJJT
0%
PQXKJV
Explanation
The first, third and fifth letters of the word are respectively moved three, four and five steps forward, while the letters at even positions are each moved two steps forward to obtain the corresponding letters of the code.
Similarly, the word 'MOTHER' is coded as 'PQXJJT'.
Hence, option (C) is the correct answer.
Three of the four given alternatives are alike in a certain manner. Only one option does not fit-in. Choose the one which is different from the rest.
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$$2731$$
0%
$$1357$$
0%
$$2571$$
0%
$$2357$$
Explanation
Except B, the sum of all digits is odd and also, the first digit is $$2$$. Whereas in B sum of digits is even.
Hence, it is different from others.
In a certain code RITA is written as SJUB. How is CUBA written in that code?
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DAVB
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DVCB
0%
CDQB
0%
BCDQ
Explanation
Given,
RITA
is written as
SJUB
. The coding pattern for the same is:
R $$\underrightarrow { +1\quad } $$ S
I $$\underrightarrow { +1\quad } $$ J
T $$\underrightarrow { +1\quad } $$ U
A $$\underrightarrow { +1\quad } $$ B
Similarly, CUBA is written as follows:
C $$\underrightarrow { +1\quad } $$ D
U $$\underrightarrow { +1\quad } $$ V
B $$\underrightarrow { +1\quad } $$ C
A $$\underrightarrow { +1\quad } $$ B
Hence,
CUBA
is written as
DVCB
.
Therefore, option (B) is the correct answer.
In a certain code ROME is coded as SUNI and BOMBAY as CUNCEZ. Then ASIA is coded as ?
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BIJB
0%
ETOE
0%
ESOE
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ATIA
Explanation
The coding pattern is as:
Except vowel, each of the alphabet is coded by its next alphabet and each of the vowel is substituted by the next vowel.
So, ASIA is coded as ETOE.
Hence, option (B) is the correct answer.
In a code language DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE. How is THURSDAY written in that language?
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DTVSTEYA
0%
HTTQRYAD
0%
HTVSTYDA
0%
HTVSTYAD
Explanation
The coded pattern is as follows:
The first two and last three letters of the word are written in the reverse order and each of the remaining letters is moved one step forward to get the code. Thus, we have
TH/URS/DAY $$\longrightarrow $$ HT/VST/YAD
Hence, option (D) is the correct answer.
Three out of the four given alternatives are alike in a certain manner. Only one option does not fit-in. Choose the one which is different from the rest.
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$$64$$
0%
$$96$$
0%
$$121$$
0%
$$144$$
Explanation
Others are perfect square numbers.
If in a certain code APRIL is written as BQSJM. Then what is the word whose code is HSFFO ?
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INDIA
0%
MARCH
0%
GREEN
0%
TREES
Explanation
Given,
APRIL is written as BQSJM
. The coding pattern for the same is:
A $$\underrightarrow { +1\quad } $$ B
P $$\underrightarrow { +1\quad } $$ Q
R $$\underrightarrow { +1\quad } $$ S
I $$\underrightarrow { +1\quad } $$ J
L $$\underrightarrow { +1\quad } $$ M
Similarly, the word which is coded as HSFFO is find out as follows:
G $$\underrightarrow { +1\quad } $$ H
R $$\underrightarrow { +1\quad } $$ S
E $$\underrightarrow { +1\quad } $$ F
E $$\underrightarrow { +1\quad } $$ F
N $$\underrightarrow { +1\quad } $$ O
Hence, GREEN is the word for the code HSFFO.
Therefore, option (C) is the correct answer.
Choose the numerical pair which is different from others.
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$$13-21$$
0%
$$19-27$$
0%
$$15-23$$
0%
$$16-24$$
Explanation
Difference of two numbers is 8 in each pair, but except(d) others contain odd numbers.
Choose the word which is least like the other words in the group
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T
0%
Z
0%
Q
0%
H
Explanation
$$Q$$ is at the $$17^{th}$$ place from the start of the alphabet and all three options are on even places.
So, option C is the odd one out.
In a certain Code MEN is written as MIN and WOMEN is written as WUMIN How will CHILD be written in the same Code?
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CHOLD
0%
CHELD
0%
CHILD
0%
CHALD
Explanation
In the given code, the next succeeding vowel in the alphabet substitutes the existing one in the word.
Clearly, CHILD will be coded as CHOLD.
Hence, option (A) is the correct answer.
If FACE is coded as GBDF, then BADE will be coded as ________.
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ABCD
0%
AZCD
0%
CBEF
0%
ABED
Explanation
The word is coded by moving each of the letter one step forward.
So,
B
$$\rightarrow$$ C
A
$$\rightarrow$$ B
D
$$\rightarrow$$ E
E $$\rightarrow$$ F
So, option C.
If F is the brother of A, C is the daughter of A, K is the sister of F and J is the brother of C, then who is the uncle of J ?
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F
0%
C
0%
K
0%
A
Explanation
F is A's brother.
C is the daughter of A.
J is the brother of C $$\Rightarrow$$ J is the son of A.
So, F is J's uncle.
option A.
A is brother of B. B is the son of C. D is C's father, then what is A of D ?
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Brother
0%
Son
0%
Grandson
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Grandfather
Explanation
$$D$$ is the father of $$C$$.
$$C$$ is the father of $$A$$ and $$B$$.
So, $$A$$ is the grand-son of $$D$$.
option C.
If in a certain language MYSTIFY is coded as NZTUJGZ, how is NEMESIS coded in that language?
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MDLHRDR
0%
OFNFTJT
0%
ODNHTDR
0%
PGOKUGU
Explanation
Given,
MYSTIFY
is coded as
NZTUJGZ
.
Here,
each letter of the word
'MYSTIFY'
is moved one step forward to obtain the corresponding letter of the code
NZTUJG
.
Similarly,
NEMESIS
is coded as
OFNFTJT
.
Hence, option (B) is the correct answer
If in a certain language, MACHINE is coded as LBBIHOD, which would be coded as SLTMFNB?
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RKSLEMA
0%
TKULGMC
0%
RMSNEOA
0%
TMUNGOC
Explanation
Given,
MACHINE
is coded as
LBBIHOD
. Here the code is:
We have alternately one letter one step behind and the next letter one step ahead of the corresponding letter in the code word.
Similarly, the word which
would be coded as '
SLTMFNB
' is '
TKULGMC
'.
Hence, option (B) is the correct answer.
If Kamal says "Ravi's mother is only daughter of my mother" How Kamal is related to Ravi?
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Grandfather
0%
Father
0%
Brother
0%
Cannot be determined
0%
None of these
Explanation
Kamal is the father of Ravi's mother and so Kamal is the grandfather of Ravi.
Deepak said to Nitin "that boy playing with football is younger of the two brothers of the daughter of my father's wife" How is the boy playing football related to Deepak?
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Brother
0%
Father in law
0%
Maternal Uncle
0%
Husband
0%
None of these
Explanation
My father's wife means my mother Daughter of my mother means my sister Brothers of my sister are my brothers
∴
∴
boy playing football is the brother of Deepak.
Pointing to a woman Naman said "She is the daughter of the only child of my grandmother "How is the woman related to naman?
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Sister
0%
Niece
0%
Cousin
0%
Mother
0%
None of these
Explanation
Only child of Naman's grandmother means Naman's father or mother Daughter of Naman's father or mother i.e. Naman's sister
Pointing to kapil shilpa said "His mother's brother is the father of my son Ashish" How is Kapil related to Shilpa?
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Sister-in-law
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Nephew
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Niece
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Aunt
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None of these
Explanation
Father of Shilpa's son - Shilpa's husband. So, Kapil is the son of sister of Shilpa's husband. Thus, Kapil is Shilpa's nephew
If in a certain code language ABCD is written as ZYXW, then how is the word DANCE written in that code?
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WZMXV
0%
MXZWV
0%
VMZXM
0%
ZMWXV
0%
MZWXV
Explanation
Given,
ABCD
is written as
ZYXW
.
The role of coding is $$\displaystyle T_{+n}$$ Is coded as $$\displaystyle T_{-n}$$
'A'
is the first letter from the start which is coded as first letter from the end i.e
'Z'
and so on.
Similarly,
DANCE
is coded as
WZMXV
.
Hence,option (A) is the correct answer.
Choose or find odd number pair
$$(18-45), (16-40), (14-28), (8-20)$$
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$$18-45$$
0%
$$16-40$$
0%
$$14-28$$
0%
$$8-20$$
Explanation
In all other pairs, 2nd number =1st number $$\times$$ 2.5.
$$E$$ is the son of $$A$$.
$$D$$ is the son of $$B$$.
$$E$$ is married to $$C$$.
$$C$$ is $$B$$'s daughter.
How is $$D$$ related to $$E$$ ?
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Brother
0%
Uncle
0%
Father-in-law
0%
Brother-in-law
0%
None of these
Explanation
$$C$$ is $$B$$'s daughter and $$D$$ is $$B$$'s son.
So, $$D$$ is the brother of $$C$$.
$$E$$ is a male married to $$C$$. So, $$E$$ is the husband of $$C$$,
whose brother is $$D$$.
So, $$D$$ is the brother-in-law of $$E$$.
option D.
In a certain code, APRIL is written as BQSJM, what is the word whose code is HSFFO?
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0%
INDIA
0%
MARCH
0%
GREEN
0%
TREES
Explanation
The answer is $$C$$
The code is got by moving 1 alphabet forward for each alphabet in the word
$$\therefore$$ To get the word whose code is $$HSFFO$$, we need to move one alphabet backward for each alphabet
$$\therefore$$ Thw word whose cose is $$HSFFO$$ is $$GREEN$$
Find the odd one out:
Report Question
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$$140$$
0%
$$221$$
0%
$$321$$
0%
$$437$$
0%
$$667$$
Explanation
$$\textbf{Step 1: Check for some mathematical relation with number/digits.}$$
$$\text{Except 667 all others are consecutive terms of a sequence, }$$
$$(A)\ \ 140=12^2-4$$
$$(B)\ \ 221=15^2-4$$
$$(C)\ \ 321=18^2-4$$
$$(D)\ \ 437=21^2-4$$
$$(E)\ \ 667\neq 24^2-4$$
$$\text{Thus, option E does not follow the given pattern.}$$
$$\textbf{Hence, option E is correct.}$$
If DIAMOND is coded as VQYMKLV, then WEALTH is coded as
Report Question
0%
CUYNFR
0%
HTLAEW
0%
YCONWJ
0%
XFBMUI
Explanation
From the figure,
WEALTH can be coded as CUYNFR.
Hence, option A is correct.
In each of the following questions find out the alternative which will replace the question mark.
? : QEHMDF :: WIDELY : HVCDXK
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0%
FRINGE
0%
STRING
0%
FRANCE
0%
DEMAND
Which group of letters is different from others ?
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CBAED
0%
IJHGK
0%
SRQPT
0%
TVWYZ
Explanation
In this option T, V, W, Y, Z are not continuous.
In a village of Bastar district in Madhya Pradesh, only two types of people live who belong to a tribal class. The first type is known as class A, while the other is known as class B. In that village, there is no other type of person except these two. The activities of both types of people are governed by prefectly patterned norms of social behaviour. Each person of the tribe has to obey the norms. They are rigid about this.
As far as marriage is concerned, the following norms are to be followed
(A). The people of class A cannot marry any other member of their own class, though they can marry members of class B.
(B). After being married, each male member ceases to be a member of that class in which he was born but automatically, he becomes the member of the other class to which his wife belongs.
(C). As far as females are concerned, they remain the members of their own class after being married.
(D). On his birth, the child automatically becomes the member of his mother's class.
(E). When any male member becomes widower or divorcee, then he again belongs to the group in which he was born.
(F). Nobody can marry more than one person according to social laws.
Any class B female can have
(P). Grandfather born in class A
(Q). Grandmother born in class A
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0%
Only (P) can be true
0%
Only (Q) can be true
0%
Either (P) or (Q) can be true
0%
Neither (P) and (Q) can be true
0%
Both (P) and (Q) can be true
Explanation
The mother of class B female belongs to class B.
So, her father was born in class A.
Thus, her father's mother belonged to class A, and father's father was born in class B.
So, the Grandfather belongs to class B and Grandmother belongs to class A.
option B.
Vasant says, " I have as many sisters as brothers."
Vaishali says, "Each of us sisters has only half as many sisters as brothers. "
Assuming that Vasant and Vaishali are brother and sister, how many brothers and sisters are there in the family ?
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$$8$$ brothers and $$6$$ sisters
0%
$$6$$ brothers and $$5$$ sisters
0%
$$5$$ brothers and $$4$$ sisters
0%
$$4$$ brothers and $$3$$ sisters
Explanation
Let no. of brothers be $$x$$ and no. of sisters be $$y$$.
As Vasant says:
$$x - 1 = y$$
as Vaishali says:
$$x/2 = y - 1$$
Solving both equations,
we get $$x = 4$$ and $$y = 3$$
So, there are $$4$$ brothers and $$3$$ sisters in the family.
option $$D$$.
Acording to a military code, SYSTEM is SYSMET and NEARER is AENRER. What is the code for FRACTION?
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0%
CARFTINO
0%
CARFTION
0%
ARFCNOIT
0%
CARFNOIT
Explanation
The letter is the first half and the letter half of the word are separately reversed to obtain the code.
In a certain code ja ki mo pe means at a frog's leap, mo la ki so means take a leap ahead and re bo ja na means insects are frog's diet. which of the following is the code for at in that language?
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0%
Ja
0%
Pe
0%
Bo
0%
Re
Explanation
ja ke mo pe => at a frog's leap --------(i)
mo la ki so => take a leapa head --------(ii)
re bo na ja => insects are frog's diet --------(iii)
From (i) and (ii), a leap => ki mo --------(iv)
From (i) and (iii), frog's => ja ---------(v)
From (i), (iv) and (v), 'at' => pe
If MADRAS can be written as NBESBT, how can BOMBAY be written in that code?
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0%
CPNCBX
0%
CPNCBZ
0%
CPOCBZ
0%
CQOCBZ
Explanation
Each letter in the word is moved one step forward to obtain the corresponding letter of the code.
Q's
mother is sister of P and daughter of M. S is daughter of P and sister of T.How is M related to T?
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0%
Father
0%
Grandfather
0%
Grandmother
0%
Either Grandmother or Grandfather
Explanation
Q's mother is sister of P & daughter of M.[sex of P and M are not clear]
S is daughter of P and sister of T. [sex of P and T is not clear] M's children : Q's mother and P
P's children: S[female] and T
M is either Grandmother or Grandfather of T
All
the six members of a family A, B, C, D, E and F are travelling together. B is the son of C but C is not the mother of B. A and C are a married couple. E is the brother of C. D is the daughter of A. F is the brother of B. Who is the mother of B ?
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0%
D
0%
F
0%
B
0%
A
Explanation
B is the son of C but C is not the mother of B means C is the father of B. A is married to C means A is the mother of B. F is brother of B means F is son of A and C. D is daughter of A means D is daughter of A and C. Clearly, A is the mother of B.
Harsh is the father of Santosh, Preeti is the daughter of Beena and Beena is the wife of Harsh. Santosh is not the daughter of Beena. Find out the relationship of Santosh and Preeti.
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0%
Father - daughter
0%
Brother - sister
0%
Husband - wife
0%
Mother - daughter
Explanation
Harsh is Father of Santosh,
Beena is Wife of Harsh,
Beena is Mother of Preeti,
So, Beena is Mother of Santosh.
Since Santosh is not the daughter of Beena, thus Santosh is a Son of Beena and Preeti is Daughter of Beena.
Hence, Santosh and Preeti are Brother and Sister.
In the following question there is a specific relationship between the first and second term. The same relationship exists between the third and the fourth term which will replace the question mark. Select the correct term from the alternatives given.
$$AYXD : ZBCW : : ? : QKLN$$
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0%
$$MOPJ$$
0%
$$JKLM$$
0%
$$JPOM$$
0%
$$MJKL$$
Explanation
Given pair follow a pattern,
The respective
letters occupy same position in alphabetic series from beginning and end respectively.
Example, $$A$$ and $$Z$$ are $$1^{st}$$ from start and end respectively.
$$Q, K, L$$ and $$N$$ are $$10^{th}, 16^{th},15^{th}$$ and $$13^{th}$$ from end respectively.
Thus, the missing term will be $$JPOM$$
Hence, option C is correct,
If husband is called wife, wife is called grandfather, grandfather is called grandmother, grandmother is called maternal grandmother, maternal grandmother is called maternal grandfather, maternal grandfather is called maternal uncle and maternal uncle is called maternal aunt, then what will the father of the mother be called?
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0%
Maternal grandmother
0%
Maternal uncle
0%
Maternal grandfather
0%
Maternal aunt
Explanation
As we have been given :
Husband $$\rightarrow$$ Wife
Wife
$$\rightarrow$$ Grandfather
Grandfather
$$\rightarrow$$ Grandmother
Grandmother
$$\rightarrow$$ Maternal Grandmother
Maternal Grandmother
$$\rightarrow$$ Maternal Grandfather
Maternal Grandfather
$$\rightarrow$$ Maternal Uncle
Maternal Uncle
$$\rightarrow$$ Maternal Aunt
The father of the mother will be "maternal grandfather" and maternal grandfather is called maternal uncle.
Therefore, answer will be Maternal Uncle.
If in a certain language, POPULAR is coded as QPQVMBS, which word would be coded as GBNPVT?
Report Question
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FAMOSU
0%
FAMOUS
0%
FASOUM
0%
FOSAUM
Explanation
In a certain language POPULAR is coded as QPQVMBS, we need to find out the logic used to code the alphabets.
The logic used here is "The alphabet is coded with next alphabet in the alphabetical series".
The code is shown in figure.
Here we need to reduce one alphabet, to find the word since coded word is given but not the original word.
Hence GBNPVT is coded for FAMOUS.
Hence the answer is option B.
In a certain language MYSTIFY is coded as NZTUJGZ, how is NEMESIS coded in that language?
Report Question
0%
MDLHRDR
0%
OFNFTJT
0%
ODNHTDR
0%
PGOKUGU
Explanation
In a certain language MYSTIFY is coded as NZTUJGZ, we need to find out the logic used to code the alphabets.
The logic used here is "The alphabet is coded with next alphabet in the alphabetical series".
Hence, M is coded as N and Y is coded as Z.
Hence NEMESIS is coded as OFNFTJT.
Hence, the answer is option B.
Markandey is Rajiv's mother's father. Markandey has three brothers. One of them has grandson Abhi. Rajan is son of Abhi. Rajan is related to Rajiv as :-
Report Question
0%
Brother
0%
Nephew
0%
Cousin
0%
Uncle
Explanation
The blood relation diagram is as shown below:
So, Rajan is nephew of Rajiv.
Find the odd number/word/ letters from given alternatives.
Report Question
0%
235
0%
145
0%
505
0%
810
Explanation
The sum of the digits of all the numbers is 10 except 810.
If development is written as Tnemdevelop, then Evaluation will be written as
Report Question
0%
Notiaevalu
0%
Noitaulave
0%
Notievalua
0%
Noitevalua
Choose the correct answer from the alternatives given.
Find the odd number from the given alternatives.
Report Question
0%
12 - 42
0%
14 - 82
0%
23-64
0%
36 - 72
Explanation
12 - 42 $$\Rightarrow $$ 1 + 2 = 3;4 + 2 = 6 $$\Rightarrow 3 \times $$2 = 6
14 - 82 $$\Rightarrow $$ 1 + 4 = 5;8 + 2 = 10 $$\Rightarrow 5 \times $$ 2 = 10
23 - 64$$\Rightarrow $$ 2 + 3=5;6 + 4 = 10 $$\Rightarrow 5 \times $$ 2 = 10
36 - 72 $$\Rightarrow $$ 3 + 6 = 9;7 + 2 = 9 $$\Rightarrow 9 \times 2 \neq $$9
Choose the correct answers from the alternative given :
Directions for questions 4 to 6: Select the odd word! numbers from the given alternatives.
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0%
12-30
0%
51-42
0%
11 - 20
0%
41 -72
Explanation
12 $$\Rightarrow$$ 1 + 2 = 3 = 30 $$\Rightarrow$$
3 + 0 = 3
51 $$\Rightarrow$$ 5 + l = 6 = 42 $$\Rightarrow$$
4 + 2 = 6
11 $$\Rightarrow$$ l + l = 2 = 20 $$\Rightarrow$$
2 + 0 = 2
41 $$\Rightarrow$$ 4+ l = 5 $$\Rightarrow$$
72 = 7 + 2 = 9
The correct answer is Option D
In a certain code, TRIPLE is written as SQHOKD. How is DISPOSE written in that code?
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0%
CHRONRD
0%
DSOESPI
0%
ESJTPTF
0%
ESOPSID
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Practice Class 11 Commerce Applied Mathematics Quiz Questions and Answers
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