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A man walks diagonally across a square lawn. What % of distance approximately was saved by not walking along the edges?

2820Medium DSSSB TGT Computer Science 0 replies

A man walks diagonally across a square lawn. What % of distance approximately was saved by not walking along the edges?

  • A25
  • B30
  • C35
  • D40
Correct answer: B

Explanation

For side a: edges = 2a, diagonal = 1.414a. Saved = 0.586a/2a = 29.3%, i.e. approximately 30%.

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