Question

You have 12 cards numbered as follows: 2,5,8,10,12,15,18,20,10,7,9,11. What is the probability of choosing an even number, given that it is a multiple of 5?

a. 5/12
b. 7/12
c. 1/2
d. 3/5

Answer 1

7/12

Explanation:

Simple:

There are 12 numbers in all and only 7 even numbers

Since there are 7 even numbers the probability of rolling an even number is 7/12.

This means that there are 7 outcomes of an even number

Therefore the probability of choosing an even number

=7/12