A swimming pool is 20 m in length ,15 m in breadth ,and 4 m in depth.find the cost of cementing it's floor and walls at the rate of ₹12 per m²
Answers
Answer:
l of swimming pool= 20m
b of swimming pool=15m
Area of floor( swimming pool) = l*b
=20*15
= 300sq.m
cost of cementing floor per sq. m = ₹12
cost of cementing floor 300 sq. m= ₹12*300
=₹3600
depth of wall = 4 m
length of wall = 20 m
breadth of wall = 15 m
Area of four walls = 2(d*l)+2(d*b)
=2(4*20)+2(4*15)
=2*80+2*60
=160+120
= 280sq.m
cost of cementing walls per sq.m = ₹12
cost of cementing walls 280 sq.m=₹12*280
= ₹ 3360
Total cost of cementing floor and walls =₹6960