Math, asked by Alexaltamas8126, 1 year ago

A rectangular room is 15 m long 12m wide 4m Height t find the cost of painting of wall and ceiling @25 rs per sq metre

Answers

Answered by nitthesh7
0
According to question,

Area to be painted = CSA of Room + Area of ceiling

                              = 2(l+b)h + lb

                              = 2(15+12)4 + 15(12)

                              = (2 × 27 × 4) + (15 × 12)

                              = 216 + 180

                              = 396 m²
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Cost of painting = 396 × 25

                          = Rs. 9900
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