Question

A water reservoir is 22 metre long 16 metre broad and 10 metre high find the cost of cementing its floor and the four walls @ rupees 19 per metre square

Answer 1

21128 rupees

Explanation:

cost of cementing 2 opposite walls=

2×22×10×19=8360

and cost of remaining 2 walls=

2×16×10×19=6080

cost of floor=22×16×19=6688

total cost=21128