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QUESTION
Q
A man walked diagonally across a square lot. Approximately, what percent saved by not walking along the edges ?
A man walked diagonally across a square lot. Approximately, what percent saved by not walking along the edges ?
A
32
B
24
C
20
D
33
E
30
A
32
B
24
C
20
D
33
E
30
Solution
Let, the length of the side of the square = 1 mThen, the length of the diagonal = √2 mDistance he need to travel...
Let, the length of the side of the square = 1 m
Then, the length of the diagonal = √2 m
Distance he need to travel along the ages is
= 1 + 1 = 2 m
Distance saved = (2 − √2) m
Percentage = [(2 − √2)/2] × 100 = 29.29%
= 30% approximately
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