Ages - Online Quiz


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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 average age of 80 girls was 20 years, the average age of 20 of them was 22 years and that of another 20 was 24 years. Find the average age of the remaining girls.

A - 17 years

B - 19 years

C - 21 years

D - 15 years

Answer : A

Explanation

Total age of remaining 40 girls = (80*20 - 20*22 ? 20*24)
= (1600-440-480)
= 680 years
Therefore average age for the 40 girls = 680/40 = 17 years

Q 2 - In a family the average age of the father and mother is 38 years whereas the average age of father, mother and their only daughter is 28 years. Then the age of the daughter is -

A - 5 years

B - 6 years

C - 7 years

D - 8 years

Answer : D

Explanation

The age of the daughter = (3*28) - (2*38)
= 84 - 76
=  8 years

Q 3 - Present ages of Radha and Sudha are in the ratio of 7:9 respectively. Five years ago ratio of their ages was 3:4. What will be Sudha?s age after 3 years from now?

A - 48 years

B - 42 years

C - 43 years

D - 38 years

Answer : A

Explanation

Let the present ages of Radha and Sudha be x years and y tears respectively.
Five years ago, Radha's age = (x - 5) years
Sudha's age = (y - 5) years
According to the question,
x/y = 7/9
Or,  x= 7y/9  ... (i)
Also, (x - 5) / (y - 5) = 3/4
Or, 4x - 20 = 3y - 15
Or, 4x - 3y = 5 ...(ii)
Putting the value of x from equ (i) into equ (ii),
(4*7y)/9 - 3y = 5
Or, 28y - 27y = 45
Or, y = 45
Therefore, Sudha's age after 3 years = 45 + 3 = 48 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 - 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 - At the present time a man age is 3 times in the comparison of his son . the man would be double than his son after 15 year . In that case what should be the age of his son at the present time?

A - 15 years

B - 18 years

C - 21 years

D - 24 years

Answer : A

Explanation

Let the son age be x years and . man age now be 3x years.
3x+15 = 2(x+15) ⇒ x =15
Present age of the son = 15 years.

Q 8 - Yusuf is as much younger to ajay as he is older to pawan , if 48 year is the sum of ajay and pawan then what should be the present age of yusuf?

A - 20 years

B - 24 years

C - 30 years

D - cannot be determined

Answer : B

Explanation

Given   A-Y = Y-P ⇒ A+P = 2Y
Also A+P = 48 Year . so,  2j = 48 ⇒ y = 24
Hence, yusuf  is 24 year old.

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 - Here 3:2 is the present age ratio between raj and john. If raj was 6 year older in the comparisoin of john after the priod of 4 years. What should be the present age ratio of john?

A - 5 years

B - 12 years

C - 20 years

D - 37 years

Answer : B

Explanation

Let raj age = 3x years. Then john age = 2x years.
(3x-4) = 2x-4 +6 ⇒ x =6
Present age of john = (2*6) = 12 years


aptitude_ages.htm

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