John is going to cover an attic floor with insulation. The floor measures 25 feet by 35 feet. If one roll of insulation will cover 64 square feet, how many rolls of insulation does John need?
A)1
B)2
C)8
D)14
E)110

Question

Quizplus · Accepted Answer

First, calculate the total area to be covered: 25 feet * 35 feet = 875 square feet. Then, divide this by the area one roll covers: 875 square feet / 64 square feet per roll = 13.67 rolls. Since John can't buy a fraction of a roll, he needs 14 rolls.

John Is Going to Cover an Attic Floor with Insulation