# Quantitative Aptitude: Problems on Ages Set 11

1. The present age of Sriram is twice that of his brother. Five years hence the ratio of their ages will be 21:13. What is the present age of his brother ?
7 years
8 years
6 years
9 years
5 years
Option B
2x+5/x+5 = 21/13
26x+65 = 21x+105
5x=40
x = 8 years

2. The sum of the age of Father and his daughter is 62 years. After 5 years, the age of father will be five times that of the son. What is the age of the Son ?
3 years
9 years
4 years
7 years
5 years
Option D
Son = 62-5(5-1)/5+1 = 62-20/6 = 42/6 = 7 years

3. One year back, Ria was six times as old as her daughter. Six years hence, Ria’s age will exceed her daughter’s age by 15 years. The ratio of the present ages of Ria and her daughter is?
13 : 5
10 : 7
17 : 13
10 : 17
19 : 4
Option E
Ages of Ria and her daughter = 6x, x
[6x + 1 + 6] – [x + 1 + 6] = 15
5x = 15; x = 3
Ratio = 6x + 1 : x + 1 = 19 : 4

4. Suresh age is 125% of what it was ten years ago, but 250/3% of what it will be after ten years. What is the present age of Suresh?
10 years
20 years
50 years
30 years
40 years
Option C
Suresh’s age before 10 years = x
125x/100 = x + 10
125x = 100x + 1000
=> x = 40
Present age = x + 10 = 50 years

5. Sanjay’ father was 30 years old when he was born. His mother’s age was 24 when his sister who is 5 years younger to him, was born. What is the difference between the age of Sanjay father and mother?
14 years
11 years
13 years
10 years
12 years
Option B
Sanjay’age = F – 30
Sister’s age = F – 35
M = 24 + Sister’s age
M = 24 + F – 35
F – M = 11 years

6. Amar got married 6 years ago. His present age is 5/4 times his age at the time of his marriage. Amar’s brother was 5 years younger to him at the time of his marriage. What is the present age of Amar’s brother?
24 years
25 years
21 years
22 years
20 years
Option B
Present age of Amar = x
Present age of Amar’s sister = y
x = (x-6)(5/4)
x = 30
Present age of Amar’s brother = 30 – 5 = 25 years

7. The respective ratio between the present age of Manu and Mina is 5:x. Manu is 9 years younger than Pooja. Pooja’s age after 9 years will be 33 years. The difference between Mina’s and Manu’s age is same as the present age of Pooja. What is the value of x?
13 years
11 years
12 years
10 years
14 years
Option A
Poooja’s age after 9 years = 33 years
Pooja’s present age = 33 – 9 = 24 years
Manu’s present age = 24 – 9 = 15 years
Mina’s present age = 15 + 24 = 39 years
Ratio between Manu and Mina = 15 : 39 = 5 : 13
x = 13 years

8. Average age of a group of 32 students is 26 years. If a teacher is included then the average age rises by 1 year,what is the present age of teacher?
38 years
40 years
44 years
59 years
50 years
Option D
Students total age = 32*26 = 832
Students & Teacher total age = 33*27 = 891
Teacher = 891-832 = 59 years

9. The ages of A and B are in the ratio of 8 : 5 respectively. After 5 years the ratio of their ages will be 7:5. What is the difference in years between their ages.
7 years
3 years
6 years
2 years
4 years
Option C
A:B
= 8:5
=> 16:10
After 5 years
21:15 = 7:5
16-10 = 6 years

10. Karan’s present age is one fourth of his father’s age two years ago. Karan’s father’s age will be twice Ram’s age after 10 years. If Ram’s 12th birthday was celebrated 2 years ago, then what is Karan’s present age ?
6 years
7 years
9 years
8 years
5 years
Option C
Ram = 12+2 = 14
Karan’s father = X+10 =2(10+14)
X = 48-10 = 38
John = 36/4 = 9 years