Question

1. A cubical room has side 5 m.Find the total cost of white washing all four walls of a room, if the cost of white washing is 20 per m². What will be the cost of white washing if the ceiling of the room is also white washed.​

Answer 1

Answer:

The dimensions of room is 12×8×4

Step-by-step explanation:

The Lateral surface area is  

2h(l+b)

2(4)(12+8)

8×20=160m  

2

 

Cost of white wash is 5m  

2

 

Total cost is 5×160=800Rs,