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Question

The ratio of the length of a field to its width is 5:3. Find its length if the width is 42 metres.

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Solution

Given: Length : Width =5:3
Let the length and the width of the field be 5x m and 3x m, respectively.
Width =42 m [given]

3x=42

x=423=14

Length =5x=5×14=70 metres


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