Ben is 4 times as old as Ishaan, Ben was 6 times as old as Ishaan. How old is Ben now?

Answer 1

How many years ago was Ben 6 times as old??? Let this value be K.

B = 4I

B-k = 6(i-k)

B-k = 6i - 6k

4I - k = 6I - 6k

0 = 2i - 5k

(5/2) k = i

Then Ben is 4(5/2)k = 10k