Ben is 4 times as old as Ishaan and is also 6 years older than Ishaan.

Let x be the age of Ben and y be the age of Ishaan.

x = 4y ... Equation (1)

x = y + 6 ... Equation (2)

Subtract the 2 equations

(1) - (2) : x-x = 4y - (y + 6)

0 = 4y - y - 6

0 = 3y - 6

3y = 6

y = 2

So Ishaan is 2 years old

Substitute y = 2 in equation (1)

x = 4 (2)

x = 8

So Ben is 8 years old and Ishaan is 2 years old.