M7MBA wrote:Of a set of 25 consecutive integers beginning with 4, what is the probability that a number selected at random will be divisible by 3?

A. 13/25
B. 9/25
C. 8/25
D. 6/25
E. 3/8

We are given that there is a set of 25 consecutive integers, starting with the number 4. Thus, the set of integers is from 4 to 28, inclusive. We need to determine how many multiples of 3 fall within that range. To do so, we can use the following formula:

# of multiples of 3 = [(largest multiple of 3 in the set - smallest multiple of 3 in the set)/3] + 1

# of multiples of 3 = [(27 - 6)/3] +1 = 21/3 + 1 = 8

Thus, the probability of selecting a multiple of 3 is 8/25.

Answer: C