Question

A road roller takes 750 complete revolutions to move once over to the level a road. Find the<br />area of the road if the diameter of road roller is 84 cmn, and length is lm.​

Answer 1

Answer:

Length of roller = 1m = 100cm

Circumference of roller = π x D = 22/7 X 84 =  264 cm

Length of road = 264 x 750 = 198000 cm

Width of road = length of roller = 100 cm

Area of road = 198000 x 100 = 19,800,000 cm² or 1980 m²

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