# Wilma can mow a lawn in 30 minutes. Rocky can mow the same lawn in 60 minutes. How long does it...

## Question:

Wilma can mow a lawn in 30 minutes. Rocky can mow the same lawn in 60 minutes. How long does it take for both Wilma and Rocky to mow the lawn if they are working together?

## Unit Rate of Work Done:

To solve this problem, we need to form an equation that represents the given situation. We represent the work to be done as a variable since the amount is not specifically given.

If a person does W amount of work in X hours, work done per unit of time is given as:

{eq}\dfrac{W}{X} {/eq}.

## Answer and Explanation: 1

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View this answerLet the total amount of work to be done be **W**.

Wilma does W work in 30 mins. So, the amount of work she does in 1 min = {eq}\dfrac{W}{30} {/eq}

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Chapter 50 / Lesson 2Unit rates can be helpful for anyone trying to figure out miles per hour, earnings per year, or practically any other amount of one unit it takes for something to happen in other units. In this lesson, take a look at what a unit rate is, why people use unit rates, finding the unit rate, and an example of unit rates.