MCQExams
0:0:1
CBSE
JEE
NTSE
NEET
Practice
Homework
×
JEE Questions for Maths Sequences And Series Quiz 7 - MCQExams.com
JEE
Maths
Sequences And Series
Quiz 7
If 2x ,x + 8, 3x + 1 are in A.P. then the value of x will be
Report Question
0%
3
0%
7
0%
5
0%
– 2
If the sum of n terms of an A.P is nA + n
2
B, where A,B are constant, then its common difference will be
Report Question
0%
A – B
0%
A + B
0%
2A
0%
2B
If a,b,c be in arithmetic progression, then the value of (a + 2b – c) (2b + c – a)(a + 2b + c) is
Report Question
0%
16 abc
0%
4 abc
0%
8 abc
0%
3 abc
Report Question
0%
1
0%
2
0%
3
0%
4
Report Question
0%
2
0%
3
0%
4
0%
2,3
If n
th
terms of two A.P\'s are 3n + 8 and 7n + 15, then the ratio of their 12
th
terms will be
Report Question
0%
4/9
0%
7/16
0%
3/7
0%
8/15
If a
1
= a
2
= 2, a
n
= a
n – 1
– 1(n > 2), then a
5
is
Report Question
0%
1
0%
–1
0%
0
0%
–2
If twice the 11
th
term of an A.P is equal to 7 times of its 21
st
term, then its 25
th
term is equal to
Report Question
0%
24
0%
120
0%
0
0%
None of these
If p times the p
th
term of an A.P is equal to q times the q
th
term of an A.P. the n(p + q)
th
term is
Report Question
0%
0
0%
1
0%
2
0%
3
The sum of n terms of two arithmetic series are in the ratio 2n + 3 : 6n + 5, then the ratio of their 13
th
terms is
Report Question
0%
53 : 155
0%
27 : 77
0%
29 : 83
0%
31 : 89
The first term of an A.P is 2 and common difference is 4.The sum of its 40 terms will be
Report Question
0%
3200
0%
1600
0%
200
0%
2800
The ratio of the sums of first n even number and n odd number will be
Report Question
0%
1 : n
0%
(n +: 1
0%
(n +: n
0%
(n –: 1
If the sum of the series 2 + 5 + 8 + 11 .... is 60100, then the number of terms are
Report Question
0%
100
0%
200
0%
150
0%
250
The sum of all natural numbers between 1 and 100 which are multiples of 3 is
Report Question
0%
1680
0%
1683
0%
1681
0%
1682
The sum of 1 + 3 + 5 + 7 + ....... upto n terms is
Report Question
0%
(n + 1)2
0%
(2n)2
0%
n2
0%
(n – 1)2
If the sum of n terms of an A.P is 2n
2
+ 5n, then the n
th
term will be
Report Question
0%
4n + 3
0%
4n + 5
0%
4n + 6
0%
4n + 7
The n
th
term of an A.P is 3n – 1. Choose from the following the sum of its first five terms
Report Question
0%
14
0%
35
0%
80
0%
40
If the first term of an A.P be 10, last is 50 and the sum of all the terms is 300, then the number of terms are
Report Question
0%
5
0%
8
0%
10
0%
15
Report Question
0%
310
0%
300
0%
320
0%
None of these
The difference between an integer and its cube is divisible by
Report Question
0%
4
0%
6
0%
9
0%
None of these
Report Question
0%
1
0%
2
0%
3
0%
4
If the numbers a, b, c, d, e form an A.P with a = 1, then a – 4b + 6c – 4d + e =
Report Question
0%
1
0%
2
0%
0
0%
3
The sum of the integers from 1 to 100 which are not divisible by 3 or 5 is
Report Question
0%
2489
0%
4735
0%
2317
0%
2632
The sum of the first and third term of an arithmetic progression is 12 and the product of first and second term is 24, then first term is
Report Question
0%
1
0%
8
0%
4
0%
6
If the sum of the first 2n terms of A.P 2,5,8,... is equal to the sum of the first n terms of A.P 57,59,61,...., then n is equal to
Report Question
0%
10
0%
12
0%
11
0%
13
The sum of numbers from 250 to 1000 which are divisible by 3 is
Report Question
0%
135657
0%
136557
0%
161575
0%
156375
7
th
term of an A.P is 40, then the sum of first 13 terms is
Report Question
0%
53
0%
520
0%
1040
0%
2080
If sum of n terms of an A.P is 3n
2
+ 5n and T
m
= 164 then m is equal to
Report Question
0%
26
0%
27
0%
28
0%
None of these
The number of terms of the A.P. 3,7,11,15.... to be taken so that the sum is 406 is
Report Question
0%
5
0%
10
0%
12
0%
14
There are 15 terms in an arithmetic progression. Its first term is 5 and their sum is 390. The middle term is
Report Question
0%
23
0%
26
0%
29
0%
32
If the sum of the 10 terms of an A.P. is 4 times to the sum of its 5 terms, then the ratio of first term and common difference is
Report Question
0%
1 : 2
0%
2 : 1
0%
2 : 3
0%
3 : 2
Three number are in A.P such that their sum is 18 and sum of their squares is 158. The greatest number among them is
Report Question
0%
10
0%
11
0%
12
0%
None of these
If A be an arithmetic mean between two numbers and S be the sum of n arithmetic means between the same numbers, then
Report Question
0%
S = nA
0%
A = nS
0%
A = S
0%
None of these
If f (x + y, x - y) = xy then the arithmetic mean of f (x,y) and f (y,x) is
Report Question
0%
x
0%
y
0%
0
0%
1
If log 2, log(2
n
–and log(2
n
+are in A.P. then n =
Report Question
0%
5/2
0%
log2 5
0%
log3 5
0%
3/2
If the sides of a right angled triangle are in A.P then the sides are proportional to
Report Question
0%
1 : 2 : 3
0%
2 : 3 : 4
0%
3 : 4 : 5
0%
4 : 5 : 6
Three numbers are in A.P. whose sum is 33 and product is 792, then the smallest number from these numbers is
Report Question
0%
4
0%
8
0%
11
0%
14
If a, b, c, d, e, f are in A.P., then the value of e – c will be
Report Question
0%
2(c – a)
0%
2(f – d)
0%
2(d – c)
0%
d – c
The four arithmetic means between 3 and 23 are
Report Question
0%
5,9,11,13
0%
7,11,15,19
0%
5,11,15,22
0%
7,15,19,21
Report Question
0%
A G.P
0%
An A.P
0%
A H.P
0%
Both a G.P and a H.P
Let α andβ are the roots of the equation pχ
2
+ qχ + r = 0, p ≠ 0. If p, q and r are in AP and
Report Question
0%
√61/9
0%
2√17/9
0%
√34/9
0%
2√13/9
In a triangle, the lengths of two larger sides are 10 cm and 9 cm. If the angles of the triangle are in AP, then the length of the third side is
Report Question
0%
√5 - √6
0%
√5 + √6
0%
√5 ± √6
0%
5 ± √6
Let a
1
, a
2
, a
3
..., a
100
be an arithmetic progression with a
1
= 3 and
Report Question
0%
3 or 9
0%
2 or 4
0%
4 or 16
0%
None of these
A man saves RS 200 in each of the first three months of his service. In each of the subsequent months, his saving increases by RS 40 more than the saving of immediately previous month. His total saving from the start of service will be RS 11040 after
Report Question
0%
19 months
0%
20 months
0%
21 months
0%
18 months
If sum of the series
Report Question
0%
S2
0%
S2/(2S + 1)
0%
2S/(S2 - 1)
0%
S2/(2S - 1)
In a geometric progression consisting of positive terms, each term equals the sum of the next two terms. Then, the common ratio of this progression equals
Report Question
0%
1/2(1 - √5)
0%
1/2(√5)
0%
√5
0%
1/2(√5 - 1)
If a
1
, a
2
, a
3
,...are in a harmonic progression with a
1
= 5 and a
20
= 25. The least positive integer n for which a
n
< 0 is
Report Question
0%
22
0%
23
0%
24
0%
25
If the 7th term of HP is 1/10 and the 12th term is 1/25, then the 20th term is
Report Question
0%
1/41
0%
1/45
0%
1/49
0%
1/37
If a
1
, a
2
, a
3
,...,a are in HP, then the expression a
1
a
2
+ a
2
a
3
+ ...+a
n-1
a
n
is equal to
Report Question
0%
(n -(a1 - an)
0%
na1an
0%
(n - 1)a1an
0%
n(a1 - an)
If AM and HM between two numbers are 27 and 12 respectively, then their GM is
Report Question
0%
9
0%
18
0%
24
0%
36
0:0:1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
0
Answered
0
Not Answered
0
Not Visited
Correct : 0
Incorrect : 0
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Practice Maths Quiz Questions and Answers
<
>
Support mcqexams.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page