Question

15 years later a man will be 2 times as old as he was 15 years ago. How old is he now?

Answer 1

Answer :-

The present age of the man is 45 years.

Step by step explanation :-

• Given :-

15 years later , a man will be twice of he was 15 years ago.

• To Find :- His present age

• Solution :-

Assume the man's age as 'x'

x + 15 = 2(x−15)

x + 15 = 2x − 30

x − 2x = −30 −15

−x = −45

• x = 45

Therefore the present age of the man is 45 years.

Verification :-

45+15 = 2(45−15)

60 = 90−30

60 = 60

• LHS = RHS

∴ The present age of the man is 45 years.

Answer 2

Answer:

45 year

Step-by-step explanation:

let the present age of man be x year

acc. to ques.

x+15 = 2(x-15)

x+15 = 2x - 30

45 = x