I assume you meant to say that he will be 3/2 the age of his sister
13+5 = 18 = 3/2 * 12
So, in 5 years she will be 12.
Now finish it off.
Rolando is 13 years old. In five years, his age will be 32 the age of his sister Marisa. How old will Marisa be in three years?
1 answer