Ages - Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to Ages. 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 ages of Arzoo and Arnav are in the ratio of 11:13 respectively. After 7 years the ratio of their ages will be 20:23. What is the difference in years between their ages?

A - 4 years

B - 7 years

C - 6 years

D - 5 years

Answer : C

Explanation

Let the present ages of Arzoo and Arnav be 11x and 13x respectively.
According to the question,
(11x + 7) / (13x + 7) = 20/23
Or, 26x + 140 = 253x + 161
Or, 260x - 253x = 161 - 140
Or, 7x = 21
Or, x =  3

Difference between  their ages = 13x - 11x
= 2x
= 2*3
=  6 years

Q 2 - The resent ages of A, B and C are in the ratio of 8:14:22 respectively. The resent ages of B, C and D are in the ratio of 21:33:44 respectively. Which of the following represents the ratio of the present ages of A, B, C and D respectively.

A - 12:21:33:44

B - 12:22:31:44

C - 12:21:36:44

D - Cannot be determined

Answer : A

Explanation

A : B : C = 8 : 14 : 22 = 12 : 21 : 33
B : C : D = 21 : 33 : 44

Therefore, A : B : C : D = 12 : 21 : 33 : 44

Q 3 - A father is 30 times older than his son. 18 years later, he will be only thrice as old as his son. Father?s present age in years is:

A - 25 years

B - 30 years

C - 40 years

D - 45 years

Answer : C

Explanation

Let the age of the son be x years. So, father's age = 30x years.

As per question, after 18 years,

30x + 18 = 3 (x + 18)
Or, 27x = 54 - 18
Or, x = 36/27 = 4/3

Therefore father's present age = 30*4/3 = 40 years

Q 4 - If 3:4 is the present age ratio of anil and varun but 5 year later , the ratio of their age change and become 4:5 . Find out the present age of varun ?

A - 15 years

B - 18 years

C - 20 years

D - 24 years

Answer : C

Explanation

If anil age is 3x year and 4x is the varun age.
3x+5/ 4x+5 =4/5 ⇒5(3x+5) = 4(x+5) ⇒ 15x+25 = 16x+20 ⇒ x= 5
Varun age  = (4*5) =20 year

Q 5 - If 1:2 is the present age ratio of two girls. But 1:3 age ratio of girls was 5 year ago . In that case find out the ratio of age after the period of 5 year?

A - 1:4

B - 2:3

C - 3:5

D - 5:6

Answer : C

Explanation

If the present age of two girls is x and 2x years. Then,
x-5/ 2x-5 = 1/3 ⇒ 3(x-5) =(2x-5) ⇒ x =10
5 year after their age ratio will be = x+5/ 2x+5 = 10+5/20+5 = 15/25 = 3/5= 3:5

Q 6 - If the age of a mother is 3 times in the comparison of her daughter before the period of 10 year . 10 year later from the present date , the mother age would be 2 times of her daughter. In that situation what should be the age ratio of them at the present time?

A - 13:4

B - 9:2

C - 7:3

D - 5:2

Answer : C

Explanation

If the x year is the present age of her daughter.
Mother age 10 year ago = 3(x-10) = (3x-30) year
Present age of the mother = ( 3x-30+10) = (3x-20) year
After 10 year age of the mother = (3x-20 +10) = (3x-10) year
Son age after the period of 10 year = (x+10) year
∴  (3x-10) = 2(x+10) ⇒ x = 30
Mother present age = (3x-20) year = 70 years.
Daughter present age = 30 years.
Required ratio =  70: 30 = 7:3

Q 7 - A mother have 7 times in the comparison of her daughter at the time of 1 year ago . At the present time mother age is equal to the square of her son . What should be the time age of mother?

A - 7 years

B - 36 years

C - 49 years

D - 64 years

Answer : B

Explanation

Let the present age of the son be x years.
Man present age  =7(x-1)+1 years =  (7x-6 ) yrs.
7x-6 = x2 ⇒ x2-7x+6 = 0 ⇒ (x-6)(x-1) =0 ⇒ x =6 or x =1
∴ present age of men = (7*6-6) = 36 yrs.

Q 8 - Before the period of 5 year, the age of vijay was 1/3 of the age in the comparison from vipin. The present age of vijay is 17 year , in that situation find out the present age of vipin?

A - 9 years

B - 36 years

C - 41 years

D - 51 years

Answer : C

Explanation

Let vijay age 5 years  ago be x years. Then, vipin age 5 years ago = 3x years.
x+5 = 17  ⇒ x = 12
present age of vipin = (3*12+5) = 41 yrs.

Q 9 - Ajay is 2 years older than brij but brij have double age in the comparison of Chaman . 27 years is the total age all of three. What should be the present age of brij?

A - 7 years

B - 8 years

C - 9 years

D - 10 years

Answer : D

Explanation

If chaman age be x years . then brij age = 2x years , ajay  age =( 2x+2)
∴  2x+2+2x+x =27 ⇒  5x = 25 ⇒ x =5
The age of brij = 10 years.

Q 10 - The age of the father was 38 years when he was born at that time the age of the mother was 36 years old while his brother was 4 year younger to his was born. What should be the difference between the age of father and mother?

A - 2 years

B - 4 years

C - 6 years

D - 8 years

Answer : C

Explanation

Let age of child be x yrs.
His father age = (38+x) years
His mother age =  36 + (x-4) = (32+x ) years
Difference of the ages of father and mother = 6 years.

aptitude_ages.htm
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