Question

a rectangular swimming pool is 15m long and 7m wide. a path 1m wide is constructed outside the swimming pool. find the area of path and the cost of constructing it at the rate of rs.50 per m.

Answer 1

Given length of swimming pool =20m

Breadth of swimming pool =15m

Height of swimming pool =4m

Curved surface area of cuboid =2(l+b)h

=2[20+15]×4

=2×35×4

CSA of cuboid (pool)=280m2

If cost of painting is =20 Rs/sq. m

then cost of painting four walls of pool =20×280

Cost =5600Rs.

Hence cost of painting four walls of swimming pool is Rs. 5600.