Question 1156341
L = 4A ( now)

4 years hence

Langa will be L+4
and Andrew will be A+4

L+4= 3(A+4)

But L=4A

4A+4 = 3A +12

4A -3A = 12-4

A= 8 Andrew is 8 years now
Langa'S age = 8*4 =32 years