Aptitude - Ratios Online Quiz


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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 - Divide Rs. 1500 among U,V,W,X so that u and V together get thrice as much as W and X together, V gets four times of what W gets and W gets 1.5 times as much as X. V gets Rs

A - 800

B - 900

C - 700

D - 450

Answer : B

Explanation

U+V+W+X=1500 ------ (1)
Here   U+V=3(W+X)
From (1)
And 4(W+X) =1500 => W+X=375
U+V=1125
Given that V=4W & W=1.5X
=> 2.5X = 375 => X=150
=> V=4*1.5*X=900

Q 2 - The speed of three trains is in the ratio 3:5:7. The ratio between the time taken by these trains to travel the same distance is

A - 35:21:15

B - 7:5:3

C - 35:15:13

D - 15:21:35

Answer : A

Explanation

Speeds are in the ratio 3:5:7
Ratio of time taken will be  1/3:1/5:1/7
=> 35/105:21/105:15/105 =35:21:15

Q 3 - If 0.6*A= 0.09*B, then A:B= ?

A - 2:3

B - 1:15

C - 20:3

D - 3:20

Answer : D

Explanation

0.6*A = 0.09 *B A/B =0.09/0.6 = 0.09/0.60 = 9/60 =3/20 
∴A:B = 3:20

Q 4 - If x/5=y/8,then (x+5):(y+8)=?

A - 3:5

B - 3:8

C - 8:5

D - 5:8

Answer : D

Explanation

Let x/5=y/8 = k ,then x = 5k and y = 8k
&therw4; x+5/y+8 = 5k+5 / 8k +8  = 5(k+1)/ 8(k+1) = 5/8
=> (x+5) : (y+8 ) = 5:8

Q 5 - Rs. 6400 are separated among three laborers in the proportion 3/5 :2 : 5/3 . The offer of second specialist is ?

A - 2560

B - 3000

C - 3200

D - 3840

Answer : B

Explanation

Given ratio=3/5:2/1:5/3=9:30:25.
Share of the second workers = Rs(6400*30/64)=Rs 3000.

Q 6 - If 32 understudies In a class are females and the proportion of females to guys understudy is 16:9 , then what % of the class is females ?

A - 32%

B - 36%

C - 56.25%

D - 64%

Answer : D

Explanation

Let the females be16x and males 9x .
Then, 16 x = 32  
=> x=2
 So, there are 32 females and 18 males in the class. 
 Percentage of females = {32/50*100)% = 64 %

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 - Rs. 680 is separated among A, B, C such that A gets 2/3 of what B gets and B gets 1/4 of what C gets. At that point their shares are separately:-

A - 75, 325, 280

B - 80 ,120, 480

C - 90 ,210, 380

D - 100, 200, 380

Answer : B

Explanation

Suppose C gets Rs. x. then B gets Rs. x/4 and gets Rs. (2/3*x/4)= x/6.
∴x/6+x/4+x=680
=>2x+3x+12x=8160
=> 17x= 8160
=> x=480
∴ A gets rs. 80, B gets rs. 120 and C gets rs. 480

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 - 20 liters of a blend contains drain and water in the proportion 5:3. In the event that 4 Liters of this blend is supplanted by 4 liters of milk, then the proportion of Drain and water in the new blend is:

A - 2:3

B - 4:3

C - 5:3

D - 7:3

Answer : D

Explanation

In 16 liters of mixture milk=(16*5/8) liters =10 liters,Water =6 liters.
New mixture contains 14 liters of milk and 6 liters of water .
∴Milk:water=14:6=7:3.

aptitude_ratios.htm

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