Question

A godown is 50 m long,40m broad and 10m gh .find the cost of wtewasng its four walls and ceiling at rupees 20 per square metre.

Answer 1

It's my answer . I hope that this will be true

Answer 2

Area of godown=2 (l+b)×h
=2 (50+40)×10
=2×90×10
=1800m^2.
Total cost of whitewashing the four walls=1800×20=rupees36000.
Area of ceiling=l×b=50×40=2000m^2.
Cost of whitewashing ceiling=2000×20=rupees40000