## Elementary Technical Mathematics

Published by Brooks Cole

# Chapter 1 - Section 1.8 - Multiplication and Division of Fractions - Exercise - Page 49: 58

#### Answer

8$\frac{1}{4}$ hour

#### Work Step by Step

Given four tires of a car can be replaced in $\frac{3}{4}$ hour Therefore we need to find how much time it will take to replace tires of 11 cars = 11 $\times$ $\frac{3}{4}$ = $\frac{33}{4}$ =8$\frac{1}{4}$ hour

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