Question

The length, breadth and height of a room are 8m, 7m and 6m respectively. Find the cost of Plastering the four walls and ceiling of the room at rate of Rs 6 per sqm. *

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Answer 1

Answer:

8*7*6 .multiply all the answer will come

Answer 2

Answer:

Area to be plastered = CSA of room + Ceiling of the room

=

$2(l + b) \times h + lb \\ = 2(8 + 7) \times 6 + 8 \times 7 \\ = 180 + 56 \\ = 236 \: {m}^{2}$

Cost of Plastering the four walls and ceiling of the room at rate of Rs 6 per sqm = 236 x 6 = ₹1416.