MCQ Questions for Class 7 Maths Fractions And Decimals Quiz 6

Find the product

$\displaystyle 7.854\times 10$

0%
$785.4$
0%
$78.54$
0%
$7854$
0%
$78540$

Explanation

To find

$7.854\times 10$

Since,

$10$ has

$1$ zero and

$7.854$ has decimal point after

$3$ digits

So, the product will have decimal point after

$2$ digits from left

Therefore, value of

$7.854\times 10$ is

$78.54$ .

Find the product

$\displaystyle 0.123\times 100$

0%
$1.23$
0%
$123$
0%
$12.3$
0%
$1230$

Explanation

To find

$0.123\times 100$

Since,

$100$ has

$2$ zeros and

$0.123$ has decimal point after

$3$ digits

So, the product will have decimal point after

$1$ digit from left

Therefore, value of

$0.123\times 100$ is

$12.3$ .

A boy weighs 56.74 kg. If his father is 1.5 times heavier than his son, then the weight of the father is ..........

0%
85 kg
0%
85.11 kg
0%
85.20 kg
0%
85.15 kg

Explanation

Weight of Boy=

$56.74kg$

Given that his father is

$1.5$ times heavier than his son.

so, weight of father=

$1.5\times56.74$

$=\cfrac{15}{10}$

$\times$

$\cfrac{5674}{100}=$

$\cfrac{85110}{1000}=85.110=85.11 kg$

Solve the given expression:

$\displaystyle 9.826\div 10$

0%
$98.26$
0%
$982.6$
0%
$0.09826$
0%
$0.9826$

Explanation

So, the number of digits after decimal point will increase by

$1$

The division of

$9.826$ by

$10$ is

$\therefore \dfrac{9.826}{10}$

$=0.9826$

A generator consumes 2.875 litres of diesel per hour. The quantity of diesel required to run the generator far 24 hours is .............

0%
45 litres
0%
55 litres
0%
72 irtres
0%
69 litres

Convert

$\dfrac{7}{4}$ into mixed fraction.

0%
$1\dfrac{3}{4}$
0%
$2\dfrac{3}{4}$
0%
$6\dfrac{3}{4}$
0%
None of the above

Explanation

$\dfrac{7}{4}=1\dfrac{3}{4}$

So, option A is correct.

$\displaystyle \frac{2}{7}$ of a week

$=$ _____ days

0%
$7$
0%
$3$
0%
$4$
0%
$2$

Explanation

One week has

$7$ days

So,

$\dfrac{2}{7}$ of a week

$=\dfrac{2}{7}\times 7=2$ days.

Hence, the answer is

$2$ .

Convert

$\dfrac{11}{4}$ into a mixed fraction.

0%
$\displaystyle 2\frac{3}{4}$
0%
$\displaystyle 3\frac{3}{4}$
0%
$\displaystyle 1\frac{3}{4}$
0%
none of the above

Explanation

Divide

$11$ by

$4$ . The quotient is

$2$ and remainder

$3$ .

$\therefore \displaystyle \frac{11}{4}= 2\frac{3}{4}$

So. option A is correct.

In improper fraction the numerator is always _______ the denominator

0%
less than
0%
greater than
0%
equal to
0%
none

Explanation

In an improper fraction, the numerator is always

$greater\ than$ the denominator.

Hence, the answer is 'greater than'.

Simplifying the fraction

$\displaystyle \frac{6}{5}\times 4\frac{1}{2}$ gives

0%
$\displaystyle \frac{27}{5}$
0%
$\displaystyle \frac{6}{5}$
0%
$\displaystyle \frac{11}{5}$
0%
None of the above

Explanation

$\displaystyle \frac{6}{5} \times 4\frac{1}{2}$

$=\displaystyle \frac{6}{5}\times \frac{9}{2}$

$= \displaystyle \frac{27}{5}$

So, option

$A$ is correct.

Two-fifth of

$10$ litre

$=$ _____ litres

0%
$2$
0%
$3$
0%
$4$
0%
$5$

Explanation

$\dfrac{2}{5}$ of

$10$ litre

$=\dfrac{2}{5}\times 10=4$ litres.

Hence, the answer is

$4$

$\displaystyle \frac{2}{5}$ of a rupee = ____ paise

0%
$20$
0%
$10$
0%
$40$
0%
$50$

Explanation

We know that

$1$ Rs

$=100$ paisa.

So,

$\dfrac{2}{5} \times 100=40$ paisa.

Hence, the answer is

$40$ .

Calculate

$456.78\times 8$ .

0%
$36542.4$
0%
$365.424$
0%
$3,654.24$
0%
$36.5424$

Explanation

Let us first multiply the two given numbers

$456.78$ and

$8$ without decimal point:

$45678\times 8=365424$

Since,

$456.78$ has two decimal places, therefore the answer

$365424$ should also have two decimal places that is

$3654.24$ .

Hence,

$456.78\times 8=3,654.24$ .

Each piece of cardboard is

$0.3\ cm$ thick. If Marie stacks

$8$ pieces of cardboard on top of one another, how thick will the stack be?

0%
$2.4\ cm$
0%
$24\ cm$
0%
$2.1\ cm$
0%
$21\ cm$

Explanation

It is given that each piece of cardboard is

$0.3$ cm thick which means that one piece is

$0.3$ cm thick.

If Marie stacks

$8$ pieces of cardboard, then the thickness of

$8$ pieces of cardboard will be:

$0.3\times 8=2.4$ cm

Hence, the stack will be

$2.4$ cm thick.

Amanda creates the base of a picture frame, using 4.55 inches of red fabric and 6.25 inches of blue fabric. How many inches of fabric are used to create the base of the frame?

0%
10.80 inches
0%
10.85 inches
0%
10.75 inches
0%
10.90 inches

Multiply

$43.09$ with

$23$ .

0%
$99.107$
0%
$991.07$
0%
$9910.7$
0%
$9.9107$

Explanation

Let us first multiply the two given numbers

$43.09$ and

$23$ without decimal point:

$4309\times 23=99107$

Since,

$43.09$ has two decimal places, therefore the answer

$99107$ should also have two decimal places that is

$991.07$ .

Hence,

$43.09\times 23=991.07$ .

A box of laundry detergent contains 16.5 oz of product. What is the maximum number of loads that can be washed if each load requires a minimum of 3/4 oz of detergent?

0%
10
0%
50
0%
22
0%
18
0%
16.5

Explanation

Quantity of detergent in a box:

$16.5 oz$

Quantity of detergent used in one wash load:

$\dfrac{3}{4}oz$ =

$0.75 oz$

No. of wash loads =

$\dfrac{Quantity\quad of\quad detergent\quad in\quad a\quad box}{Quantity\quad of\quad detergent\quad used\quad in\quad one\quad wash\quad load}$

$\dfrac{16.5}{0.75}$

$22$ wash loads

(Three rupees

$5$ paise)

$\times$ (five rupees

$40$ paise) is equal to

0%
$Rs. 18.90$
0%
$Rs. 16.47$
0%
$Rs. 17.64$
0%
$RS. 15.37$

Explanation

We know that 100 paise is nothing but 1 Rupee.

$5Paise = 0.05 Rupees$

Also

$40 Paise = 0.4 Rupees$

Now Three Rupees

$5\ Paise = 3 \ Rupees + 0.05\ Rupees$

$=3.05 \ Rupees$

Also Five Rupees

$40 \ Paise= 5 \ Rupees + 0.40 \ Rupees$

$= 5.40 \ Rupees$

Now to find (Three rupees

$5$ paise)

$\times$ (five rupees

$40$ paise)

$=3.05\times 5.40 \\=Rs.\ 16.47$

Your supervisor instructs you to purchase 240 pens and 6 staplers for the nurse's station. Pens are purchased in sets of 6 for $2.35 per pack. Staplers are purchased in sets of 2 for 12.How much will purchasing these products cost?

0%
$132.85
0%
$145.75
0%
$162.90
0%
$225.25
0%
$226.75

What is the difference between 3.8 and 0.571?

0%
0.73
0%
2.567
0%
3.229
0%
4.262

Explanation

Numbers are

$3.8$ and

$0.571$ .

Subtracting both of them,

Ref. image

Answer - C

2106093_537533_ans_3ec72834e9bc43bfacbe6a10b6ad497e.png

State True or False.

$0.05\times 7$ =

$0.35$

0%
True
0%
False

Explanation

Multiply

$0.05 \times 7$

$= \dfrac{{5}}{{100}} \times 7$

$= \dfrac{{35}}{{100}}$

$=0.35$

State True or False:

$210.01\times 5$

$=1050.05$

0%
True
0%
False

Explanation

LHS

$=210.01 \times 5$

$= \dfrac{{21001}}{{100}} \times 5$

$= \dfrac{{105005}}{{100}}$

$=1050.05=$ RHS

Answer: True

Is the simplified fraction form:

$6\times \cfrac { 1 }{ 5 }$

$=1\cfrac { 2 }{ 5 }$

0%
True
0%
False

Explanation

We have,

$6\times\dfrac{1}{5}=\cfrac{6}{5}=\cfrac{1\times5+1}{5}=1\cfrac{1}{5}\quad[\because a\cfrac{b}{c}=\cfrac{a\times c+b}{c}]$

So, above statement is false.

Hence,

$\text{B}$ is the correct option.

Multiply and reduce to lowest form:

$\cfrac { 2 }{ 3 } \times 5\cfrac { 1 }{ 5 }$

0%
$3\cfrac { 7 }{ 15 }$
0%
$7\cfrac { 3 }{ 15 }$
0%
$\cfrac { 7 }{ 15 }$
0%
$3\cfrac { 3 }{ 15 }$

Explanation

$\dfrac{2}{3}\times 5\dfrac{1}{5}$

Can be written as

$\dfrac{2}{3}\times \dfrac{26}{5}$

$=\dfrac{52}{15}$

$=3\dfrac{7}{15}$

State true/false:

$1234.56$ is equal to

$1000+200+30+4+\cfrac { 5 }{ 10 } +\cfrac { 6 }{ 100 }$

0%
True
0%
False

Explanation

Given 1234.56 can be written as

$1234.56 = 1000 + 200 + 30 + 4 + 0.5 + 0.6$

$= 1000 + 200 + 30 + 4 +$

$\dfrac{5}{10}$ +

$\dfrac{6}{100}$

So, given statement is true

State true/false:

For the given ,

$\dfrac{6}{7} \times 2$

the answer as a mixed fraction is

$1\dfrac{5}{7}$

0%
True
0%
False

Explanation

$\dfrac{6}{7} \times 2$

Can be written as

$=\dfrac{12}{7}$

$=1\dfrac{5}{7}$

State true or false.

$5.34\times 0.03=0.1602$

0%
True
0%
False

Solve the following:

$0.45\div 5$

Ans:

$0.09$

0%
True
0%
False

Explanation

Given,

$0.45\div 5$

Could be written as,

$= \dfrac{45}{100}\times \dfrac{1}{5}$

$= \dfrac{9}{100}$

$= 0.09$

So, given statement is true.

Rahul bought

$4kg$

$90g$ of apples,

$2kg$

$60g$ of grapes and

$5kg$

$300g$ of mangoes. The total weight of all the fruits he bought is _______ .

0%
$11.000kg$
0%
$11.450kg$
0%
$11.350kg$
0%
$11.250kg$

State true or false

The value of

$127.1÷1000$ is

$= 0.1271$

0%
True
0%
False

Explanation

Given,

$127.1\div 1000$

Could be written as,

$= \dfrac{1271}{10}\times \dfrac{1}{1000}$

$= \dfrac{1271}{10000}$

$= 0.1271$

So, given statement is true.

CBSE Questions for Class 7 Maths Fractions And Decimals Quiz 6 - MCQExams.com

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Practice Class 7 Maths Quiz Questions and Answers

CBSE Questions for Class 7 Maths Fractions And Decimals Quiz 6 - MCQExams.com

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Practice Class 7 Maths Quiz Questions and Answers

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