A swimming pool is 20 m in length, 15 m in breadth and 4 m in depth. F

1.	A swimming pool is 20 m in length, 15 m in breadth and 4 m in depth. Find the cost of cementing its floorand walls Rs. 12 per m2
Answer» L=20 mb= 15mh= 4 m First we find the area of floor=>20x15=>300 m²Then, we find area of walls=>2(20x4) + 2(15x4)=>2(80 + 60)=>280 m² Add both to get total area=>300+280= 580 m² Multiply total area and cost per m²=>580x 12=>Rs. 6960

A swimming pool is 20 m in length, 15 m in breadth and 4 m in depth. Find the cost of cementing its floorand walls Rs. 12 per m2

Answer»

L=20 mb= 15mh= 4 m

First we find the area of floor=>20x15=>300 m²Then, we find area of walls=>2(20x4) + 2(15x4)=>2(80 + 60)=>280 m²

Add both to get total area=>300+280= 580 m²

Multiply total area and cost per m²=>580x 12=>Rs. 6960