A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges? Choose the correct choice from the following options
A) 20%
B) 30%
C) 35%
D) 40%
E) 50%
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   30%)
<result>B</result>
A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?