# 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, Riaâ€™s age will exceed her daughterâ€™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] â€“ [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
Sureshâ€™s age before 10 years = x
125x/100 = x + 10
125x = 100x + 1000
=> x = 40
Present age = x + 10 = 50 years

5. Sanjayâ€™ father was 30 years old when he was born. His motherâ€™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
Sanjayâ€™age = F â€“ 30
Sisterâ€™s age = F â€“ 35
M = 24 + Sisterâ€™s age
M = 24 + F â€“ 35
F â€“ 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. Amarâ€™s brother was 5 years younger to him at the time of his marriage. What is the present age of Amarâ€™s brother?
24 years
25 years
21 years
22 years
20 years
Option B
Present age of Amar = x
Present age of Amarâ€™s sister = y
x = (x-6)(5/4)
x = 30
Present age of Amarâ€™s brother = 30 â€“ 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. Poojaâ€™s age after 9 years will be 33 years. The difference between Minaâ€™s and Manuâ€™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
Pooojaâ€™s age after 9 years = 33 years
Poojaâ€™s present age = 33 â€“ 9 = 24 years
Manuâ€™s present age = 24 â€“ 9 = 15 years
Minaâ€™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. Karanâ€™s present age is one fourth of his fatherâ€™s age two years ago. Karanâ€™s fatherâ€™s age will be twice Ramâ€™s age after 10 years. If Ramâ€™s 12th birthday was celebrated 2 years ago, then what is Karanâ€™s present age ?
6 years
7 years
9 years
8 years
5 years
Option C
Ram = 12+2 = 14
Karanâ€™s father = X+10 =2(10+14)
X = 48-10 = 38
John = 36/4 = 9 years