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A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?

20
24
30
33

Correct Answer: 30

Explanation:

Let the side of the square(ABCD) be x metres.

Then, AB + BC = 2x metres.

AC = √2x = (1.41x) m.

Saving on 2x metres = (0.59x) m.

Saving % =	❨	0.59x	x 100	❩%	= 30% (approx.)
		2x

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