Question

a cylinder roller is used to level a rectangular playground the length of the roller is 3.5 M and diameter is 1.4 m if the roller rolls 400 times completely to cover the playground. find the area of playground. find the cost of levelling in at rate of rs 15.50 per metre

Answer 1

STEP BY STEP EXPLAINATION IN ABOVE ATTACHMENT

THEREFORE, Ar(playground)=

$6160{m}^{2}$

cost = Rs.95,480.

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