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 - A certain amount was divided between Sangeetha and Sunita in the 5:4. If Sunita's share was Rs.3600,the amount is :

A - 7900

B - 8100

C - 8300

D - 8500

Answer : B

Explanation

Let their shares be Rs. 5x and 4x.
Thus, 4x=3600 =>x=900
Total amount =9x=Rs.8100.

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 =1/2:3/8 , B:C =1/3:5/9 and C:D =5/6:3/4 then , A:B:C:D=?

A - 3:2:4:5

B - 6:8:9:10

C - 8:6:10:9

D - 2:3:4:5

Answer : C

Explanation

A:B = 1/2 : 3/8 =4 :3 ,
B:C = 1/3 :5/9 = 3:5 
and C:D = 5/6 : 3/4 = 10 :9 
A:B = 4:3 , B:C = 3 :5
, C:D = 10/2 :9/2 = 5 :9/2 
A:B:C:D = 4:3:5:9/2 = 8 :6: 10 :9

Q 4 - If 2A =3B and 4B=5C,then A:C=?

A - 3:4

B - 15:8

C - 8:15

D - 4:3

Answer : B

Explanation

2A =3B thus A/B=3/2 and 4B=5C thus B/C = 5/4 
∴  A/C=(A/B*B/C)
= (3/2*5/4) = 15/8 A:C =15:8.

Q 5 - If 20 % of (p +q )=50 % of (p-q ), then p:q =?

A - 5:7

B - 7:5

C - 7:3

D - 7:8

Answer : C

Explanation

20/100* (P+Q) = 50/100* (P-Q)
=> 20 * (P+Q)=50 *(P-Q)
=> 20P +20Q = 50P-50Q
=> 30P=70Q 
=> P/Q=70/30=7/3
=> P:Q = 7:3.

Q 6 - In an extent which is proportionate to 5:8 , if the harbinger is 40, then the subsequent is :

A - 25

B - 64

C - 48

D - 129

Answer : B

Explanation

Let the consequent be X. Then,
 5/8 =40/x
=>  5x=8*40
=>  x=64
∴ Consequent is 64.

Q 7 - At the point when 20% of a no. is added to another no., the no. increment by half. What is the proportion between the first and the second no?

A - 3:2

B - 2:3

C - 5:2

D - cannot be resolved

Answer : C

Explanation

Let the numbers be x and y. Then,
Y+ 20x/100 = (150/100)y
=> x/5 ={ (3/2)y-y}= y/2
=> 2x-5y
=> x/y=5/2 
=> x:y =5:2

Q 8 - Rs. 355 were separated among A, B,C in a manner that A had Rs. 20 more than B and C had Rs.15 all the more than A . What amount was C offer?

A - 100

B - 120

C - 135

D - 150

Answer : C

Explanation

Suppose B gets Rs. X. Then, A gets Rs. (x+20) and C gets Rs. (x+35)
∴ x+20+x+x+35= 355 => 3x=300 
=>x=100
 ∴ C share= (100+35) =135.

Q 9 - Rs. 5625 are separated among A, B and C so that A receives 1/2 as much as B and C together gets and B gets 1/4 of what An and C together gets. The offer of A is more than B by:

A - 750

B - 775

C - 1500

D - 1600

Answer : A

Explanation

A= 1/2(B+C) 
=> B+C= 2A 
=> A+B+C= 3A
∴ 3A = 5625 
=> A= 1875.
B= 1/4 (A+C) 
=> A+C =4B 
=> A+B+C = 5B
∴ 5B = 5625 
=> B =1125
Hence, (A-B) = (1875-1125) =750

Q 10 - Vessels An and B contain blends of milk and water in the proportion 4:5 and 5:1 separately .in what proportion ought to amounts of blends be taken From A to B to shape a blend in which drain to water is in the proportion 5:4?

A - 2:5

B - 2:3

C - 4:3

D - 5:2

Answer : D

Explanation

Let the required ratio be X:1
Milk in x ltr. of 1st mix=  (x*4/9)= 4x/9 ltr.
Water in x ltr. of 1st mix= (x-4x/9)= 5x/9 ltr.
Milk in 1 ltr. of 2nd. Mix= 5/6 ltr.
Water in 1 ltr. of 2nd. Mix= {1-5/6}=1/6 ltr.
Milk: water =(4x/9+5/6): (5x/9+1/6) =(8x+15)/18: (10x+3)/18
∴ (8x+15)/(10x+3) =5/4 
=> 4(8x+15)= 5(10x+3)
= 18x=45  
=>x=5/2
Required ratio : 5/2:1 =5:2
aptitude_ratios.htm
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