The diameter of a roller 120cm long in 84 cm . If it takes 500 complete revolutions to level a playground, determine the cost of levering at the rate of Rs25 per square
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Answer:
Step-by-step explanation:
d=84cm
r=42cm
h=120cm
1 revolution = CSA of cylinder
500 revolutions = 500×2×pie×rh
=500×2×22/7×42×120
=1000×44×6×120
=15840000cm2
=1584m2
Rate=rs25
Rate for 500 revolution=25×1584
=rs39600
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