Question

If, on average, Bob can make a sale to every 3rd person that comes into his store, how many people must come into Bob�s store if he wanted to make approximately fifteen (15) sales?

Answer 1

Answer: 45 people

Explanation: 15 x 3 = 45.

A sale is made to every third person. So this can be broken up in multiples of three (with one being the person who buys, and the other 2 are not buying). If you count in multiples of 3, 15 times (ie. 3 x 15)then it will give you 45, indicating that for every 3 people who enter the store, only one actually buys something.