Diameter of a road roller is 1.2 m long is 42 cm.if the cost of levelling the playground at rs 1.5 per m Sq is rs 1425.60 determine number of revolutions takes by roller for levelling the ground
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but it is in Hindi you translate it in English
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CSA of the roller =2×22/7×42/2×1.2
=158.4m²
Therefore
158.4×1.5×no.of revolution =1425.60
no. of revolution =9/1.5
=6
=158.4m²
Therefore
158.4×1.5×no.of revolution =1425.60
no. of revolution =9/1.5
=6
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