Aptitude - Decimals & Fractions Online Quiz



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 - When 0.66666666... is converted in to fraction, then the result is

A - 1/3

B - 2/3

C - 2/5

D - 2/9

Answer : B

Explanation

 2/3

Q 3 - Which of the following fractions is greater than 1/3 and less than 5/6.

A - 4/3

B - 2/7

C - 3/2

D - 2/3

Answer : D

Explanation

As 1/3=0.33, 5/6=0.83, 4/3=1.33, 2/7=0.28, 3/2=1.5 and 2/3=0.67 
 Clearly, 0.67 lies between 0.83 and 0. 33.

Q 4 - If 1/6th part of a number is 150 more than 1/9th part of that number, then the number is?

A - 2100

B - 2400

C - 2500

D - 2700

Answer : D

Explanation

 Let the number be X.
 Thus 1/6X- 1/9X=150
 =>(3X-2X)/18=150
 =>X=2700

Q 5 - What is the value of 3.14 x 106

A - 314

B - 3140

C - 3140000

D - 31400

Answer : C

Explanation

 
 3.14 x 106 = 3.14 x 102 x 104  
 = 314 x 104 = 3140000  

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 - 1.07 x 65 + 1.07 x 26 + 1.07 x 9 = ?

A - 10.73

B - 10.7

C - 107

D - 1.07

Answer : C

Explanation

 
 1.07 x 65 + 1.07 x 26 + 1.07 x 9 = 1.07 x (65 + 26 + 9) = 1.07 x 100 = 107 

Q 8 - (0.87 x 0.87 x 0.87 + 0.13 x 0.13 x 0.13) / (0.87 x 0.87 - 0.87 x 0.13 + 0.13 x 0.13)= ?

A - 0.13

B - 0.73

C - 0.9

D - 1

Answer : D

Explanation

 
 As a3 + b3 = (a+b)(a2-ab + b2) 
 Thus (a3 + b3) / (a2-ab + b2)  = a + b  
 ∴ (0.87 x 0.87 x 0.87 + 0.13 x 0.13 x 0.13) / (0.87 x 0.87 - 0.87 x 0.13 + 0.13 x 0.13) = 0.87 + 0.13 = 1

Q 9 - 3.87878787 - 2.595959 = ?

A - 1.20

B - 1.222222

C - 1.272727

D - 1.282828

Answer : D

Explanation

 
 3.878787 - 2.595959 = 3 + 87/99 - 2 - 59/99 = 1 + 28/99 = 1.282828 

Q 10 - If a tank gets filled by 18 buckets of water where capacity of each bucket is 9 litres. How many buckets are required to fill the same tank if its capacity is 13.5 litres?

A - 12

B - 13.5

C - 24

D - 25

Answer : A

Explanation

   
  tank capacity = 18 x 9 = 162 litres 
 required number of buckets = 162 / 13.5 = 162 x 2/27 = 12. 
aptitude_decimals.htm
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