diameter of a roller is 1.75 metres and length is 1 metre how many revolutions are to be required to press the ground having area 1100 square metre .
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Answer:
200
Step-by-step explanation:
C.S.A= 2πrh = 2×3.14×1.75/2×1 = 5.495 sq. m
no. of revolutions = total area to be pressed/area covered in one revolution = 1100/5.495 = 200.182 ≈200(approx.)
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