Question

3 students are selected from a class that has 10 boys and 5 girls. what is the probability that 1 boy and 2 girls are selected?

Answer 1

Chances of drawing a boy the first time = 12/16. 
Chances of drawing a boy the second time = 11/15. 
Chances of drawing a boy the third time = 10/14. 

(12/16)(11/15)(10/14) = about 39.3%.