Question

A number is chosen from the set {1, 2, 3, 4,..., 18). What is the probability that the number is a factor of 6?

• 1/2
0 2/3
0 2/9
0 3/8
0 4/5

Answer 1

2/9

Explanation:

set: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18 (18 numbers)

factors of 6: 1,2,3,6 (4 numbers)

probabilty that the number is a factor of 6: 4/18 = 2/9