Problems on Ages- Aptitude Questions and Answers

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The total age of A & B is 12 years more than the total age of B & C. C is how many year younger than A?

A)

15


B)
14

C)
13

D)

12



Correct Answer :

12


Explanation :

From the given data
A+B = (B+C)+12
A+B-(B+C) = 12
A-C = 12 years
C is 12 years younger than A

The ratio of the present age of P & Q is 6:7. If Q is 4 years old than P. What will be the ratio of the ages of P & Q after 4 years?

A)

2:5


B)
5:8

C)
6:7

D)

7:8



Correct Answer :

7:8


Explanation :

The present age of P & Q is 6:7
Q is 4 years old than P i.e Q = P+4.
i.e
P / Q = 6 / 7
P/ P+4 = 6/7
7P-6P = 24
present age of P = 24

present age of Q = P+4 =24+4 = 28

After 4 years the ratio of P & Q is
P+4 : Q+4 => 24+4 : 28+4
=> 28:32
=> 7:8

The ratio of the age of a man & his wife is 4:3.After 4 years this ratio will be 9:7. If the time of marriage the ratio was 5:3, then how many years ago were they married?

A)

15


B)
12

C)
10

D)

8



Correct Answer :

12


Explanation :

The age of a man is 4x and age of his wife is 3x.
After 4 years their ratio's will be 9:7
i.e
4x+4 / 3x+4 = 9 / 7
28x-27x=36-28
x = 8
Age of a man is 4x = 4*8 = 32 years.
Age of his wife is 3x = 3*8 = 24 years.

Let us assume 'y' years ago they were married ,
the ratio was 5:3
i.e
32-y / 24-y = 5/ 3
96-3y = 120-5y
2y=24
y = 12 years
i.e 12 years ago they were married

Sneha's age is 1/6th of her father's age. Sneha's father's age will be twice the age of Vimal's age after 10 years. If Vimal's eight birthday was celebrated two years before, then what is Sneha's present age?

A)

12 years


B)
10 years

C)
7 years

D)

5 years



Correct Answer :

5 years


Explanation :

Assume Sneha's age is 'x', her father's age is 'y' years and Vimal's age 'v'
Sneha's age is 1/6 th of her fathers age
i.e x = y /6.
Father's age will be twice of Vimal's age after 10 years.
i.e y+10 = 2( v+10)

Vimal's eight birthday was celebrated two years before, Then the Vimal's present age is 10 years.
Y+10 = 2(10+10)
Y=30 years.

Sneha's present age x = y/6 = 30/6 = 5 years.

The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

A)

4 years


B)
6 years

C)
8 years

D)

10 years



Correct Answer :

4 years


Explanation :

Let the age of the youngest child be x years
and age of the children's be x ,x+3, x+6, x+9, x+12.

then x+(x+3)+(x+6)+(x+9)+(x+12) = 50
5x+30 = 50
5x = 20
x = 4
Age of the youngest child is x = 4 years

If 6 years are subtracted from the present age of Gagan and the remainder is divided by 18, then the present age of his grandson Anup is obtained. If Anup is 2 years younger to Madan whose age is 5 years, then what is Gagan's present age?

A)

96 years


B)
84 years

C)
60 years

D)

48 years



Correct Answer :

60 years


Explanation :

Let us assume Gagan present age is 'x' years.
Anup age = 5-2 = 3 years.
(x-6) / 18 = 3
x-6 = 54
x = 60 years

My brother is 3 years elder to me. My father was 28 years of age when my sister was born while my mother was 26 years of age when i was born. If my sister was 4 years of age when my brother was born,then what was the age my father and mother respectively when my brother was born?

A)

32 years, 23 years


B)
32 years, 29 years

C)
35 years, 29 years

D)

35 years, 33 years



Correct Answer :

32 years, 23 years


Explanation :

Father was 28 years of age when my sister was born.
My brother was born 4 years after my sister was born.
Then Father's age when brother was born = 28+4 = 32 years.

Mother was 26 years of age when I was born.
My brother was born 3 years before I was born,
Then Mother's age when brother was born = 26-3 = 23 years.

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