Martin is X yrs. old.
Joan is (x-3) yrs. old.
4x/5 = x-3
Multiply both sides by 5:
4x = 5x-15
X = 15
(4/5) * 15 = 12 yrs. = Joan's age.
Joan is three years younger than Martin. How old will Joan be when she is 4/5 his age?
1 answer
1 answer