Question

find the cost of plastering the inner surface of a well at 9.50 rupee per m2 if it is 21m deep and diameter is 6 m​

Answer 1

Answer:

Rs. 3762

Inner surface of well = πdh

d = diameter of well = 6m

h = height of well = 21m

Calculating inner surface area from above formula

we get Inner Surface = 22 * 6 * 21 / 7 = 396 square meter

Cost of plastering per square meter = Rs. 9.5

Total cost of plastering inner surface = inner surface area * cost per meter square

= 396 * 9.5 = Rs. 3762

Step-by-step explanation:

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