1.

A swimming pool is 50 m in length , 30 m in breadth and 2 m in depth . Find the cost of cementing its floor and walls at the rate of Rs 30 per square metre .​

Answer»

ong>Answer:

you need to find the Lateral SURFACE area+area of top

Then multiply it with 30

Explanation: Total area to CEMENT= 2(lh+bh)+ lb

Hence, area to be cemented is 2(100+60) + 50*30

So, area to be cemented is 1820 m

Cost= area *30

=1820 * 30

=₹54,600



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