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 - There were 24 students in a class. One of them, who was 18 years old, left the class and his place was filled up by a new comer. If the average of the class thereby was lowered by 1 month, the age of the newcomer is -

A - 14 years

B - 16 years

C - 17 years

D - 15 years

Answer : B

Explanation

Total age decreased = 24 * 1 months = 24 months or 2 years.
Therefore, age of the new comer = 18 ? 2 = 16 years

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 8 :15 is the ratio of sunil and tarun ages than the ratio and tarun change after the period of 9 year and become 11:18 . Find out the age difference between sunil and tarun ?

A - 20 years

B - 21 years

C - 24 years

D - 33 years

Answer : B

Explanation

Let sunil age = 8 year and tarun age is = 15 x years.
8x+9 / 15x+9 =11/18  ⇒ 18 (8x+9) = 11(15x+9)
⇒  144x +162 = 165x +99 ⇒21x = 63 ⇒ x =3
Difference between the ages = (15x-8x)= 45-24 = 21 years

Q 5 - What should be the present age of a man if the given condition is such as 15 year hence , a men will be 4 times as old as he was before the period of 15 year?

A - 10 years

B - 15 years

C - 20 years

D - 45 years

Answer : D

Explanation

Let man present age be x years.
His age 15 year ago = (x-15) years.  His age 15year hence = (x+15) years.
(x+15) = 4(x-15) ⇒ 3x= 45 ⇒ x = 45

Q 6 - What should be the present age of two person if 5:7 is the present age ratio of two person and 3:5 was the age ratio before the period of 16 year?

A - 30, 44 year

B - 35, 52 years

C - 40, 56 years

D - 45, 60 years

Answer : C

Explanation

If the present age of two persons are 5x years and 7x years.
5x-16/ 7x-16 =3/5 ⇒ 5(5x-16) =3(7x-16)
⇒ 4x= (80-48) = 32 ⇒ x =8
Hence, their present ages are 40 years and 56 years.

Q 7 - If Ram and Sham have 36 year and 16 year age . After how much time ram age would be double as old as sham ?

A - 1 year

B - 2 years

C - 3 years

D - 4 years

Answer : D

Explanation

Let it be in x years. Then,
36+x = 2(16+x) ⇒ x =4

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 - What should be the present age of A,B and C who have the present age in the proportion of 10 :11:12. 150 was the sum of the ages of all before the period of 5 years.

A - 20, 22, 24 years

B - 30, 33,36 years

C - 40, 44, 48 years

D - 50, 55, 60 years

Answer : D

Explanation

If the present age  of A,B and C be 10 x, 11x and 12x  years.
Sum of their ages now = (150+ 5*3) =165 years.
∴ 10x+11x+12x = 165 ⇒ 33 x = 165 ⇒ x = 5
So, their  ages are 50, 55 and 60  years.

Q 10 - 15 year hence, a man will be just 4 times as old as he was 15 years ago . His present age is

A - 5 years

B - 15 years

C - 20 years

D - 25 years

Answer : A

Explanation

Let the present age of the men  be x years. then
(x+15) = 4(x-15) ⇒ 3x= 75 ⇒ x =25
Hence, the present age of the man is 25 years.

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