Question

A swimming pool is 20m in length 15 in
Breath and 4m in dept. Find the cost of cementing its floor and walls at the rateof 12per spuare meter

Answer 1

given
length = 20 m
breadth = 15 m
height = 4 m
TSA of cuboid = 2 (lb +bh +hl)
= 2 ( 20×15 + 15 ×4 + 4 ×20)
= 2 ( 300 + 60 + 80)
= 2 (440)
= 880 m ^2
cost of cementing the floor and walls at the rate of 12 per square metre
= 880×12
=1056 Rs