Question

2 Points

Answer 1

Answer:

Option: D is the correct answer.

               D. Permutation; number of ways = 120

Step-by-step explanation:

We need to use the method of permutation since permutation method is used for the selection as well as arrangement of the 5 students.

Now there are 5 competitors in a running competition and  5 medals are awarded for first place through  fifth place. Each medal is different.

Now, the ways it can be done is:

$5_P_5=\dfrac{5!}{(5-5)!}\\\\\\5_P_5=\dfrac{5!}{0!}\\\\\\5_P_5=5!\\\\\\5_P_5=5\times 4\times 3\times 2\times 1\\\\\\5_P_5=120$

                     Hence, option: D is the answer.

Answer 2

Answer:  B. combination, 120 ways to award