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 - 0.45 / (0.15 / 45) =

A - 100

B - 125

C - 135

D - 145

Answer : C

Explanation

 0.45/(0.15/45) = (45/100) / (15/4500) = (45 x 4500)/ (100 x 15) =135

Q 3 - The greatest of 3/5, 6/5, 9/8, 7/3

A - 7/3

B - 9/8

C - 6/5

D - 3/5

Answer : A

Explanation

3/5=0.6, 6/5=1.2, 9/8=1.12 and 7/3=2.33

Q 4 - 1/9+2/9+1/3+1/6=?

A - 8/3

B - 7/6

C - 5/6

D - 7/18

Answer : C

Explanation

  1/9+2/9+1/3+1/6 =(2+4+6+3)/18 =15/18 =5/6

Q 5 - 0.6 + .66 + .066 + 6.606 =?

A - 6.744

B - 6.738

C - 7.932

D - 7.388

Answer : C

Explanation

 0.6 
 0.66  
 0.066  
 6.606  
 -----  
 7.932  
 -----  

Q 6 - if 6.06 x X = 1212/0.5. What is X?

A - 4.04

B - 400

C - 0.4

D - 0.44

Answer : B

Explanation

 
 6.06 x X = 1212/0.5 
 => X = (1212 x 10)/(0.5 x 6.06) 
 = (1212 x 1000) / 3030 
 = 400 
 

Q 7 - (0.352 - 0.032) / 0.19 = ?

A - 0.32

B - 0.48

C - 0.64

D - 0.76

Answer : C

Explanation

  
 As a2 - b2 = (a+b)(a-b) 
 ∴ (0.352 - 0.032) / 0.19 = (0.35 + 0.03)(0.35 - 0.03) / 0.19 
 = (0.38 x 0.32) / 0.19 = (38 x 0.32) / 19 = 2 x .32 = .64 

Q 8 - {(27.5 - 19.3)2 + (19.3 + 27.5)2} / (19.32 + 27.52)= ?

A - 4

B - 3

C - 2

D - 1

Answer : C

Explanation

  
 Given expression can be expressed as {(a-b)2 + (a+b)2} / (a2 + b2) 
 where a = 27.5 and b = 19.3 
 = 2(a2 + b2)/(a2 + b2) = 2 

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 Najma got 2305.08 Rs as her pocket allowance in year 2004. What was her daily pocket allowance?

A - 6.30 Rs

B - 6.31 Rs

C - 6.32 Rs

D - 6.34 Rs

Answer : A

Explanation

   
  As year 2004 is a leap year. Thus daily allowance = 2305.08 / 366 = 6.30 Rs


aptitude_decimals.htm

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