Aptitude - Decimals & Fractions Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to Decimals and Fractions. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - (0.92+0.32+0.12)/(0.092+0.032+0.012)=?

A - 100

B - 81

C - 99

D - 75

Answer : A

Explanation

 (0.92+0.32+0.12)/(0.092+0.032+0.012) 
 = (0.92+0.32+0.12)/0.12(0.92+0.32+0.12) 
 = 1/0.12 = 100

Q 2 - How many digits are there to the right of decimal in the product of 45.875x323.87?

A - 2

B - 4

C - 5

D - 6

Answer : C

Explanation

 5

Q 3 - Express 0.888 in fractional form

A - 88/100

B - 89/100

C - 8/9

D - 88/9

Answer : C

Explanation

0.888...= 8/9

Q 4 - Find the value of 0.16 / (0.4/16).

A - 6.4

B - 6.2

C - 0.4

D - 4.0

Answer : A

Explanation

 0.16/ (0.4/16) =  0.16/(0.4/16)  =  (16/100)/(4/10) x16 = 16x16x10/100x4  = 6.4

Q 5 - 15.60 x 0.30 = ?

A - 4.68

B - 0.458

C - 0.468

D - 0.0468

Answer : A

Explanation

 
 Number of decimal places in the product = 2 + 2 = 4. 
 1560 
  x30 
----- 
 0000 
4680x 
----- 
46800 
----- 
 ∴ 15.60 x 0.30 = 4.68 

Q 6 - 2560.16 x 160.18 = ?

A - 4

B - 16

C - 64

D - 256.25

Answer : A

Explanation

  
 2560.16 x 160.18 = (44)0.16 x (42)0.18 
 = 4(4x0.16)x4(2x0.18) 
 = 4(0.64 + 0.36)  
 = 41 
 = 4 

Q 7 - .000033 / 0.11 = ?

A - 0.003

B - 0.03

C - 0.0003

D - .3

Answer : C

Explanation

 
 .000033 / 0.11 = .0033/11 = .0003 

Q 8 - (0.25 x 0.25 - 0.24 x 0.24) / 0.49 = ?

A - 0.0006

B - 0.49

C - 0.01

D - 0.1

Answer : C

Explanation

 
 As a2 - b2 = (a+b)(a-b)  
 ∴ (0.25 x 0.25 - 0.24 x 0.24) / 0.49 = (0.25 + 0.24)(0.25 - 0.24) / 0.49 
 = (0.49 x 0.01) / 0.49 = 0.01

Answer : C

Explanation

 
 0.535353 = 53/99 

Q 10 - What is the decimal fraction for 40 ml of a litre?

A - .4

B - .04

C - .05

D - .004

Answer : B

Explanation

   
  Required fraction = 40/1000 = 0.04.


aptitude_decimals.htm

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