Question

The internal measure of a cuboid hall are 13 m x 9m× 5 m find the total cost of whitewashing all four walls and ceiling of a hall if the cost of whitewashing is 4rupees per metre square

Answer 1

Answer:

RS 1816

Step-by-step explanation:

TSA OF CUBOIDAL HALL= 2(LB+BH+HL)

                                           = 2( 13*9+9*5+5*13)

                                           = 2(117+45+65)

                                           = 2* 227

                                           = 454 M^2

COST PER M^2= RS 4

COST 454M^2= 454*4= RS 1816