Question
Download Solution PDFHow many seconds will a boy take to run one complete round around a square field of side 79 metres, if he runs at a speed of 4 km/h?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Side of square field = 79 m
Speed of boy = 4 km/h
Formula used:
Time (t) = Distance / Speed
Calculations:
Perimeter of the square field = 4 × Side
⇒ Perimeter = 4 × 79 = 316 m
Speed in m/s = (4 × 5/18) = 10/9 m/s
Time = Distance / Speed
⇒ Time = 316 / (10/9)
⇒ Time = 284.4 seconds
∴ The correct answer is option (2).
Last updated on Jul 16, 2025
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