A wheel with diameter 40 cm makes 50
revolutions per minute. How long will it take to
cover a distance of 6.28 km (Use a = 3.14)?
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Answer:
100m or i hr 40 min
Step-by-step explanation:
circumference = diameter×3.14=125.6 cm
in one min=125.6×50=6280 cm or 0.0628
to cover 6.28 km=6.28%0.0628= 100m or 1 hr 40 min
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