Question

At the Guelph University presentation they gave out prizes! 15 people were at the presentation. The...

At the Guelph University presentation they gave out prizes! 15 people were at the presentation. The first 2 names drawn got t-shirts, the next 3 different names drawn were given hats and the last 5 different students were given key chains. How many different ways can the prizes be handed out?

Show your calculations.

Homework Answers

Answer #1

Solution:
Given in the question
Total number of people = 15
If First two names drawn got t-shirts than number of ways first name drawn for t-shirts out of 15 = 15C2
Now number of people left = 15-2 = 13
Next three different names drawn were given hats than number of ways next 3 different names drawn out of 13 = 13C3
Number of people left = 10
Last 5 different students were given key chains so number of ways last 5 different students out of 10 = 10C5
So Total number of different ways can the prizes be handed out = 15C2*13C3*10C5 = 105*286*252 = 7567560

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