Math, asked by rahulaisectda5625, 1 year ago

What will be cost to paint a room of length 15m breadth 6m and height 5m if the rate to paint is Rs.12 per sq.meter?

Answers

Answered by Emilia09
2

length= 15 m

breadth= 6 m

height= 5 m

painting a room = all the 4 walls + roof

                          = LSA of cuboid + area of rectangle

                          = 2 h ( l + b )  + l x b

                          = 2 x 5 ( 15 + 6 ) + 15 x 6

                          = 10 x  21 + 90

                          =  210 + 90

                          = 300 m²

rate per meter = Rs. 12

                        = 300 x 12

                        =Rs 3600

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