Question

the height of a room is 4 m the room has a size of 3m *2m find the cost of painting the inner side of 4 walls at the rate of 2.50 per square metre

Answer 1

Answer:

Step-by-step explanation:

Height = 4m

Length = 3m

Breadth = 2m

C.S.A= 2(l+b)h

        = 2(3+2)*4

        = 2*5*2=40m^2

       

Cost of painting per metre square=Rs

                                                       2.50

Cost of painting 40m^2= 2.50*40

                                       =Rs100

Answer 2

the answer of your question is ₹100