Question

A swimming pool is 20m long,25 m broad and 4 m deep.find the cost of cementing its floor and walls at the rate of of rs 12 per square meter

Answer 1

Lateral surface of the pool=2(l+b)h
=2(20+25)*4
=2*45*4
=360sq. M
Area of the floor =20*25
=500sq. M
.°.Total area to be cemented=
(360 + 500)sq. m
=860 sq,m
Cost of cementing the total area = 860*12
=₹10320