Question

A child has 4 wooden blocks. How many different ways can she stack 3 of them into a tower?

Answer 1

Explanation:

To find the number of different ways she can stack 3 of them in a tower, we need to use the formula:

`_(n)P_(k)=(n!)/((n-k)!)`

n = 4

k = 3

`_(n)P_(k)=(4!)/((4-3)!)`

`_(n)P_(k)=(4!)/(1!)`

`_(n)P_(k)=(4*3*2*1!)/((1)!)`

`_(n)P_(k)=(4*3*2*1!)/(1)`

`_(n)P_(k)=(24)/(1)`