A consumer group surveyed the prices for a certain item in five different stores and reported the mean price to be $15.If you visited four of these stores and found their prices to $10,$15,$17,and $25,what is the price of this item at the fifth store?
A)$8
B)$10
C)$12
D)$15
E)It cannot be determined.

Question

Quizplus · Accepted Answer

The mean price of the item in the five stores is $15. The total price of the item in the four stores you visited is $10 + $15 + $17 + $25 = $67. Therefore, the price of the item in the fifth store must be $15 - $67 / 4 = $8.

A Consumer Group Surveyed the Prices for a Certain Item