طيب rano00nah عاارف السؤااآآل سهههل بسس لييه ماا قسم ع التوتآآل في النأأتج ^_^ ؟؟
there are
2 math - student and
5 stat student in a class . how many ways can a group of 3 studens be selected
if there
must be at least one math - student on the group ?