Find the probability of

obtaining a multiple of 3 from a
number chosen randomly by a
student from the integers
between 1 and 20 inclusive
A. 2/7
B.3/7
C. 3/10
D. 2/9

1 answer

To find the probability of obtaining a multiple of 3, we need to determine how many numbers between 1 and 20 inclusive are multiples of 3.

The multiples of 3 between 1 and 20 are: 3, 6, 9, 12, 15, and 18.

There are 6 numbers that are multiples of 3.

Therefore, the probability is 6/20 = 3/10.

The answer is C. 3/10.