Question

A road roller is 350 cm long and its diameter is 84 cm. It takes 500 complete revolutions to travel the road. The area covered by it in m² will be:

a. 4620

b. 6420

c. 2460

d. 4260​

Answer 1

Answer:

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Answer 2

Answer:

Question :-

A road roller is 350 cm long and its diameter is 84 cm. It takes 500 complete revolutions to travel the road. The area covered by it in m² will be:

a. 4620

b. 6420

c. 2460

d. 4260

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$\dag \sf \red{ \underline{Solution}}$

$\tt{\underline{\underline{correct \: option \: is \: none \: of \: the \: above ♐}}}$

CSA of cylinder = 2πrh

CSA= 2×22/7×84/2×350

CSA= 92400cm²

Area of square = CSA× revolution

Area of square = 92400×500

Area of square = 46200000 cm²

Area of square in meter = 46200000/100

Area of square = 46200 m²

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