Aptitude - Ratios Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to Ratios. 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 - Rs.11256 is divided among X,Yand Z so that X may receive 1/3 as much as Y and Z together receive Y receives 1/5 of what X and Z together receive. The share of X is more than that of Y by:

A - 938

B - 586

C - 1153

D - 1236

Answer : A

Explanation

X = 1/3(Y+Z) => Y+Z = 3X
=>X+Y+Z = 11256
=> 4X = 11256
=> X = 2814
 Again, Y = 1/5(X+Z) => X+Z = 5Y
=> 6Y = 11256
=>Y = 1876
Then X's share is more than that of Y by Rs. (2814-1876) =938

Q 2 - If 18: x=x: 18, then x is equal to:

A - 18

B - 324

C - 9

D - 4.24

Answer : A

Explanation

18: x=x: 18
=>18/x=x/18=>x=18

Q 3 - If A:B =1:3 , B:C =5:7 , C:D =9:7 ,then A:B:C:D =?

A - 15:45:63:49

B - 15:49:45:63

C - 45:15:63:49

D - 49:15:45:63

Answer : C

Explanation

A:B = 1 :3 = 5 :15 , 
B :C = 5:7 =15 :21 
and C:D = 21/9 *9 : 21/9 *7
A: B = 5:15 , B :C = 5:7 and C:D =21:49/3 
A : B :C :D = 5 :15 :21 : 49/3 
=> A : B :C :D = 15 :45 : 63 : 49

Q 4 - if 0.4 :1.4 ::1.4:x , then x= ?

A - 49

B - 4.9

C - 0.49

D - 0.4

Answer : B

Explanation

0.4*X =1.4 *1.4
=> X=1.4*1.4/0.4 
=14*14/10*4 
=49/10= 4.9

Q 5 - On the off chance that a:b =c:d =e: f =1:2 , then (3a+5c+7e) : (3b +5d +7f ) = ?

A - 1:2

B - 1:4

C - 2:1

D - 8:7

Answer : A

Explanation

a/b=c/d=e/f=1/2?a= b/2,c=d/2 and e=f/2.
  ∴ (3a+5c+7e)/(3b+5d+7f) =
(3b/2+5d/2+7f/2)/(3b+5d+7f) 
= 1/2(3b+5d+7f)/3b+5d+7f) = 1/2.
=>  (3a+5c+7e):(3b+5d+7f)= 1:2.

Q 6 - The proportion of winning of An and B is 8:9 , if the gaining of An is expanded by half and procuring of B is diminished by 25%, the new proportion of their acquiring is 16:9 , what are An acquiring?

A - 22000

B - 28500

C - 37000

D - cannot be resolved

Answer : D

Explanation

New earnings of A and B=Rs (150% of 8x), Rs (75%of 9x)
 =Rs (150/100*8x), Rs (75/100*9x) = Rs 12x,Rs 27x/4
 Ratio of new earnings = 12x: 27x/4 = 48:27 = 16:9.
Thus, we cannot find A's earnings.

Q 7 - Two entire numbers whose entirety is 64, cannot be in the proportion

A - 5:3

B - 7:1

C - 3:4

D - 9:7

Answer : C

Explanation

For dividing 64 in to two whole numbers, the sum of the terms of the ratio must be a factor of 64.
So, they cannot be in the ratio 3:4

Q 8 - if the wage of A is 10% more than that of B and the wage of B is 20 % not as much as that of C, than the pay of A,B, C are in the proportion.

A - 11:10:8

B - 22:20:25

C - 10:9:7

D - 22:18:25

Answer : B

Explanation

Let C income be Rs 100. Then, B income=Rs 80.
A income=(110% of Rs 80)=Rs(110/100*80)=Rs 88.
∴A:B:C=88:80:100=22:20:25.

Q 9 - Rs. 53 is isolated among A, B and C in a manner that A gets rs.7 more than what B gets and B gets rs. 8 more than what C gets. The proportion of their offer is:

A - 16:9:18

B - 25:18:10

C - 18:25:10

D - 15:8:30

Answer : B

Explanation

Let C=x Then, B= (x+8) and A =(x+15)
∴ x+15+x+8+x =53 
=>3x =30  
=> x=10
∴ A:B:C=25:18:10.

Q 10 - Rs 3068 are circulated among A,B and C such that on diminishing Their shares by Rs 10,Rs 14 and Rs 20 individually, the parity cash would be isolated among then in the proportion 5:6:7. at that point ,B offer is:

A - 864

B - 1022

C - 2014

D - 1064

Answer : B

Explanation

Money in the ration 5:6:7 is Rs (3068 -44) =Rs 3024.
∴B share =Rs{(3024*6/18)+14}=Rs(1008+14) =1022
aptitude_ratios.htm
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