What will be the Son’s Present Age in Years?
Present ages of father & son are in the ratio of 5:1 respectively. Seven years later this ratio becomes 3:1. What is the son’s present age in years?
- 8
- 7
- 6
- 5
Answer: (2) 7
Explanation:-
Let be the age of the father = 5X and age of boy = X
According to the question,
(5X + 7) /(X + 7 ) = 3/1
By cross multiplication-
5X + 7 = 3X + 21
5X – 3X = 21 – 7
2X = 14
X = 14/2
X = 7
Thus, the present age of the son is 7 years.
Hence, the answer is (2) 7.
