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Chapter 7: Q.462. (page 741)

Prem takes 3hours to mow the lawn while her cousin, Barb, takes 2hours.

How long will it take them working together?

Short Answer

Expert verified

It would take Prem and his cousin about65hours to mow the lawn together.

Step by step solution

01

Step 1. Given information.

Prem takes 3hours to mow the lawn while her cousin, Barb takes2hours.

02

Step 3. A chart will help us to organize the information.

Lettbe the number of hours needed to mow the lawn together.

03

Step 3. Find the value of t.

The work completed by Prem plus the work completed by his cousin equal the total work.

13+12=1t2+36=1t56=1tt=65

04

Step 4. Simplified answer.

It would take Prem and his cousin about65hours to mow the lawn together.

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