Question

There are 10 students in a classroom, including the triplets Hugh,Stu, ans Lou. if 3 of 10 are randomly selected to give speeches, what is the probability that Hughs will be first ,Stu will be second, and Lou will be third?

Answer 1

P(Hugh) = 1/10
P(Stu) = 1/9
P(Lou) = 1/8

Required probability = 1/10 * 1/9 * 1/8 = 1/720