Respuesta :

Mellissa is 10 years and Joyce is 34 years right now.  They will be 12 and 36 in two years. 
Joyce will be 34 because Melissa is 10 so 10+24 will be 34 and if she will be three times as much so still in two years she will still be 2 years older so Joyce will be 36 and Melissa will be 12 so.....

Melissa 12 and Joyce 36