Question

a swimming pool is 20m in length 15m in breadth 4m, in depth .Find the cost of cementing its floor and walls at rs 35 per metere square

Answer 1

Hey,

Area of 4 walls of the swimming pool

= 2h (l + b)
= 2*4 (20 + 15)
= 8 * 35
= 280 m2

Area of the floor of the swimming pool

= l * b
= 20 * 15
= 300 m2

TOTAL AREA

= 280+300
= 580 m2

Cost of cementing the swimming pool @ Rs. 12/m

= 580 * 12
= Rs. 6960 

HOPE IT HELPS:-))