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 between Hyder's and Siddiq's age at present is 3:5.Hyder is 8 years younger then Siddiq. The ratio of Hyder's age to Siddiq's age after 8 years will be:

A - 4:9

B - 5:6

C - 5:7

D - 3:5

Answer : C

Explanation

Let their ages be 3x and 5x years.
5x-3x=8 or x=4.
Hyder's age = 3x =12 and Siddiq's age = 5x =20.
After 8 years Hyder's age = 12+8 = 20
After 8 years Siddiq's age = 20+8 =28
Ratio of their ages 20:28 = 5:7

Q 2 - The difference between two positive numbers is 20 and their ratio is 3:2.Find the product of the two numbers?

A - 400

B - 800

C - 900

D - 1600

Answer : B

Explanation

Let the numbers be X and Y
Difference between the numbers is 20 =>X-Y=20 ------- (1)
Ratio of the numbers is 3:2
 =>X/Y=3/2     -------- (2)
From eqn 1 & 2 3/2 Y-Y=20=>Y=20 & X=40
X*Y=800

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 - On separating a total of rs. 832 in the middle of An and B in the proportion 1/3 :1/5 , there offer are :

A - 520 , 312

B - 500, 332

C - 530 ,302

D - 490 , 342

Answer : A

Explanation

Given ratio =1/3: 1/5 = 5:3
Ist part=Rs(832*5/8)=Rs 520; 
2nd part = Rs(832*3/8)=Rs 312.

Q 6 - The month to month pay of An and B are in the proportion 2:3 and their month to month costs are in the proportion 6:9. On the off chance that each of them recovery 600 rs for every month, then their month to month wage?

A - 1500, 2250

B - 1200, 1800

C - 1600, 2400

D - 1400, 2100

Answer : C

Explanation

Let the incomes of A and B be Rs 2x and Rs 3x respectively and their Expenditures are Rs 5y and Rs 9y respectively. Then,
  2x-5y=600 ...  (i) and  3x-9y=600
=> x- 3y=200 ...  (ii) 
On solving (i) and   (ii) ,  we  get  x =800.
So, their incomes are Rs.1600 and Rs.2400 respectively.

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. 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 - Two equivalent glasses are 1/3 and 1/4 loaded with milk. They are then topped off with the water and the substances are blended in a tumbler. The milk's proportion and water in the tumbler is:

A - 7:5

B - 7:17

C - 3:7

D - 11:23

Answer : B

Explanation

First glass contains milk =1/3, water=2/3.
Second contains milk =1/4,water=3/4.
New tumbler contains milk=(1/3+1/4)=7/12,water=(2/3+3/4)=17/12.
Ratio of milk and water in it =7/12:7/12=7:17.

aptitude_ratios.htm

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