Question

The wall is 12 metre long and 8 metre heigh it has to be whitewashed from both sides at the rate of rupees 10 per metre square find the cost of whitewashing

Answer 1

Step-by-step explanation:

The dimensions of room is 12×8×4

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,