Question

Nitesh is four times as old as vishal at present. After 4 years nitesh's age will be twice as vishal's age, what are their present ages?

Answer 1

Answer

let present ages of vishal be x

nitesh age, 4x

after 4 years

vishal's age =x+4

nitesh age =4x+4

4x+4=2(x+4)

4x+4 =2x+8

2x=4

x=2

the present age of vishal is 2 years

and nitesh age is  8 years

Answer 2

STEP BY STEP EXPLANATION :

we can consider here that Vishal's age is x

and Nitesh's age is 4x

After 4 years Vishal's age is x + 4

and nitesh's age is 4x + x

According to the question,

4x+x = 2(x+4)

8x = 2x + 8

8x - 2x = 8

6x = 8

x = 8/6

x = 2

Therefore, Vishal age is 2yrs.

Then, Nitesh's age will be = 2 × 4 = 8

Therefore, Vishal's ages 2yrs and Nitish's age is 8 yrs.