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 - (0.46-0.046)/(0.0046/46)=?

A - 0.414

B - 0.0414

C - 414

D - 4140

Answer : D

Explanation

(0.46-0.046)/(0.0046/46)= 0.414/(1/10000) 
= 4140

Q 2 - (0.012+0.0012)/0.0001 + 0.01=?

A - 1.00

B - 1.02

C - 1.04

D - 1.06

Answer : A

Explanation

 (0.012+0.0012)/0.0001 + 0.01 
=(0.0001-0.000001)/0.0001 + 0.01 = 0.99 + 0.01 = 1.00

Q 3 - A man spends 1/3rd of his salary on household expenses, 1/3th for rent, 1/6th for travel expenses; the man deposits the rest in a bank. If his monthly deposits in the bank amount Rs.1000, what is his monthly salary?

A - 4000

B - 5000

C - 6000

D - 7000

Answer : C

Explanation

 Let the Total amt is X.
 Therefore: X-(X/3+X/3+X/6) = 1000
 X= Rs.6000

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 - 16.02 x 0.001 = ?

A - 0.001602

B - 0.01602

C - 0.1602

D - 1.602

Answer : C

Explanation

 
 1602 x 1 = 1602 
 => 16.02 x 0.001 = .01602 (considering 5 places of decimal)

Q 6 - 12.1 / 19.8 = ?

A - 7/9

B - 11/18

C - 13/17

D - 11/19

Answer : B

Explanation

 
 12.1/19.8 = 121/198 = 11/18. 

Q 7 - (6.5 x 4.7 + 6.5 x 5.3) / (1.3 x 7.9 - 1.3 x 6.9) = ?

A - 3.9

B - 39

C - 34.45

D - 50

Answer : D

Explanation

 
 (6.5 x 4.7 + 6.5 x 5.3) / (1.3 x 7.9 - 1.3 x 6.9) = {6.5 x (4.7 + 5.3)} / {1.3 x (7.9 - 1.3)} = (6.5 x 10) / (1.3 x 1) = 50.  

Q 8 - .983 + .023 - 3 x .98 x .02 - 1 = ?

A - 0

B - 1

C - 1.09

D - 1.98

Answer : A

Explanation

 
 Given expression is a3 + b3 + 3ab - 1 where a - .98 and b =.02 
 ∴ .983 + .023 - 3 x .98 x .02 - 1 = (a+b)3 -1 
 = (.98 + 0.02) - 1 = 0 

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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