A square play ground measures 1127.6164 sq.m. If a man walks 2 (9/20) m a minutes then time taken by him to complete one round around it is approximately:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 54.82 min
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Understanding |
Application |
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Area of a square playground = 1127.6164 sq. m. |
So, Side of the ground = √1127.6164 = 33.58 meter |
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Perimeter of square = 4 × Side |
Hence, Perimeter of ground = 4 × 33.58 = 134.32 m |
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Speed = 2 (9/20) = 49/20 mtr/min |
Hence, Required time = 134.32/(49/20) = 54.82 min |