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

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

[A].

20

[B].

24

[C].

30

[D].

33

Answer: Option C

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