# If Boy 1 cuts half of a 30m by 40m lawn by cutting strips of equal width around the lawn. How wide should the width of the strips be so that the rectangle left that Boy 2 will have to cut is equal to the amount of lawn Boy 1 cut?

##### 1 Answer

Apr 10, 2016

#### Answer:

Width of strip should be 5 m

#### Explanation:

Let area of the whole be

Given that inner area - outer area =

But

Divide through out by 8

Width of strip should be 5 m

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Check:

Inner rectangle area

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Outer ring area

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