A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?
Choose the correct option:
A) 30
B) 40
C) 50
D) 60
E) 70
Explanation:   Let the side of the square(ABCD) be x meters.   Then, AB + BC = 2x metres.   AC = √2x = (1.41x) m.   Saving on 2x metres = (0.59x) m.   Saving % = 0.59x/2x × 100 % =30% (approx)   30nswer: 30
<result>A</result>
A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?