[Q] The sum of the present ages of a son and his father is 60 years. Six years ago, father's
age was five times the age of the son. After 6 years, what will be son's age?
(a) 30 years
(b) 20 years
(c) 40 years
(d) 10 years
(a) 30 years
(b) 20 years
(c) 40 years
(d) 10 years
Solution
Answer
(b)
Explanation
----
Let the present age of the son = x, then
Present age of the father = 60-x
Six years ago father's age was 5 times the age of the son
=> (60-x)-6 = 5(x-6)
=> 84 = 6x
=> x =846 = 14
Son's age after 6 years = x + 6 = 14 + 6 = 20 years
Explanation
----
Let the present age of the son = x, then
Present age of the father = 60-x
Six years ago father's age was 5 times the age of the son
=> (60-x)-6 = 5(x-6)
=> 84 = 6x
=> x =
Son's age after 6 years = x + 6 = 14 + 6 = 20 years
No comments:
Post a Comment