Question

How many different ways can 4 tickets be selected from 50 tickets if each ticket wins a different prize? Assume order is important.

Answer 1

There are 5527200 different ways

Explanation:

∵ They are 50 tickets , and order is important

∴ The choice of first ticket is 50

∴ The choice of second ticket is 49

∴ The choice of third ticket is 48

∴ The choice of fourth ticket is 47

∴ The number of ways = 50 × 49 × 48 × 47 = 5527200