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Answers
Answer:
Total Cost of leveling the ground = Rs. 6336
Step-by-step explanation:
Given: Diameter of Roller = 120 cm
Length of Roller = 84 cm
Rate to level the 1 m² ground = Rs. 10
To find: Total cost to level the ground.
Radius of roller, r = \frac{120}{2}=60\,cm
2
120
=60cm
Height of roller, h = 84 cm
Surface area of Road leveled in 1 revolution = Curved surface area of cylinder
Surface area of Road leveled in 200 revolution
= 200 × Curved surface area of cylinder
= 200\times2\pi rh200×2πrh
= 200\times2\frac{22}{7}\times60\times84200×2
7
22
×60×84
= 200\times2\times22\times60\times12200×2×22×60×12
= 6336000 cm²
= 633.6 m² (\:1cm^2=\frac{1}{10000}m^2\:1cm
2
=
10000
1
m
2
)
Thus, Total Cost of leveling the ground = 633.6 × 10 = Rs. 6336
Therefore, Total Cost of leveling the ground = Rs. 6336
Step-by-step explanation:
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Step-by-step explanation:
the total cost of leveling the ground is = 6336 .