Question

A class has 100 students, 70 of which are boys. 70% of the boys are involved in sports, while 40% of the girls are involved in sports. A student is chosen at random. If the student chosen is a boy, what is the probability that he is involved in sports?

Answer 1

Well if of 100 students there is 70 boys, and only 70% of the boys are in sports, all you need to do is find 70% of 70. Which is 49.

70 x 0.07= 4.9
4.9x10=49