There are 25 people competing in a race. in how many ways can they finish in first and second place? a 49 b 400 c 600 d 625

C 600

Step-by-step explanation:

We are given that there are 25 people competing in a race.

We are required to find In how many ways can they finish in first and second place

We will use combination over here

\

Now out of 25 , 1 got the first place

So, n =25

r =1

Now since first place is occupied so for second place there are 24 people

So, n = 24

r = 1

So, no. of ways they can finish in first and second place =

                                                                                             =

                                                                                             =

Hence there are 600 ways so that they can finish in first and second place