Question

2. The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find
the cost of white washing the inner of the room and ceiling at the rate of 50
per square metre.​

Answer 1

Answer:

surface area of cuboid is

Step-by-step explanation:

here we need to consider the surface area of the cuboid as the inner surface is 2(lb+lh+bh) and the value is multiplied by 50 if not consider the floor we get 2h(l+b)+lb multiplied by 50 which is cost per square metre.