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Area - General Aptitude

Q1:

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

ANS:C - 30

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