Question

3. The age of a person is twice the
sum of the ages of his two sons
and five years ago his age was
thrice the sum of their ages. Find
his present age.
a. 60 years
b. 52 years
C. 51 years
d. 50 years​

Answer 1

Here's Your Answer:

Let age of the person be x

Let sum of ages of two sons be y

Now,

x = 2y -----(1)

Five years ago,

(x-5) = 3(y-10) (2 Sons)

(2y-5) = 3y-30 ----[From (1)]

2y-3y = -30+5

-y = -25

y = 25 years

x = 2y

x = 50 years

Sum of ages of sons = 25 years

Age of the person = 50 years

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