Answer:
5
Step-by-step explanation:
20 divided by 4 = 5
1 x 5 = 5
Answer:
b
Step-by-step explanation:
Answer:
There are 220 choices
Step-by-step explanation:
Given

(President, Treasurer and Secretary)
Required
Determine number of selection (if no restriction)
This is calculated using the following combination formula:

Where


So, we have:









<em>There are 220 choices</em>