Question

a swimming pool is 20 metre in length 15 metre in breath and 4 metre in-depth find the cost of sementing floors and walls and @ rupees 12 per square metre​

Answer 1

Answer:

given:-L=20m

B=15m

H=4m

Step-by-step explanation:

lateral surface area of a pool(cuboid) =2h(l+b)

=2*4(20+15)

=8*35

280m^2

cost of cementing floor and walls=280*rs.12

=rs.3360

HOPE IT IS HELPFUL.........

Answer 2

since it is cuboid shaped,

volume of the cuboid=l*b*h=20*15*4=1200m²

cost of cementing one metre²=Rs.12/m²

cost of cementing the floors=Rs.(1200*12)

=Rs.14400