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Question

In exchange of a square plot one of whose sides is 84 m, a man wants to buy a rectangular plot 144 m long and of the same area as of the square plot. Find the width of the rectangular plot.

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Solution

Given:Side of the square plot = 84 mNow, the man wants to exchange it with a rectangular plot of the same area with length 144.Area of the square plot = 84×84 = 7056 m2Area of the rectangular plot = Length×Width7056=144×WidthWidth=7056144=49 mHence, the width of the rectangular plot is 49 m.

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