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 - The ratio of money with Raju and Babu is 9:19 and that with Babu and Shyam is 9:19.if Raju has Rs.567,Babu has

A - 2527

B - 2525

C - 2523

D - 2521

Answer : A

Explanation

Raju:Babu = 9:19 = 81:171
Babu:Shyam = 9:19 = 171:361
=> Raju:Shaym = 81:361
=> 81:361 = 567:x
=>x = 2527

Q 2 - Rs. 960 was divided among three sons Qavi, Shafi and Rafi. If each of them had received Rs 45 less, their shares would have been in the ratio of 3:5:7. What was the amount received by Qavi?

A - 275

B - 260

C - 320

D - 210

Answer : D

Explanation

Total =Rs.960
If each of them receives Rs.45 less then 960-(45*3) =825
Ratio being 3:5:7
=>3x+5x+7x=825
=>x=55
Qavi's amount = (3x) +45=(3*55)+45=Rs.210

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 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 - The proportion of young men and young ladies in a school is 3:2 . at the point when 6 more young ladies join , this proportion gets to be 6:5 . What are number of young men there in the school?

A - 24

B - 30

C - 42

D - 36

Answer : D

Explanation

Let the quantity of young men and young ladies be 3x and 2x individually.
At that point ,3x/(2x+6)=6/5 ?15x=12x+36?3x=36?x=12.
Number of boys=(3*12)=36.

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 numbers are separately 20% and half all the more than a third Number. These two numbers are in the proportion:

A - 2:5

B - 4:5

C - 3:2

D - 5:2

Answer : B

Explanation

Let the 3rd number be X. Then,
1st  number =     120% of X= (120/100*X)= 6x/5
2nd  number= 150 % of X= (150/100 *X) =3x/2
∴ Ration of these no. = 6x/5 :3x/2 =12:15 =4:5

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 - An entirety of cash is isolated among A, B and C in a manner that to every rs. A gets 100, B gets 65 paisa and C gets 35 paisa. If C offer is 28, the total is:

A - 120

B - 140

C - 160

D - 180

Answer : C

Explanation

A:B:C=100:65:35 = 20:13:7
If C share is 7, sum is (20+13+7).
If C share is 28, sum is (40/7*28)= 160

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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