road roller 4 m wide and with a diameter of 3.5 m makes 4 revolutions in 1 minute. How much time will it take to roll over an area of 6160 m2?
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Answer:
35 min
Step-by-step explanation:
Area in one revolution=2(pie)r×width=2(pie)(3.5%2)×4
=22%7×35%10×4=44m(sq.)
No.of revolution required to roll area of 6160 m(sq.) =6160%44=140
time required=140%4=35 min
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