Question

john is constructing and underground water tank with a square base with each side 10 cm the depth of the tank is 5cm. the tank is open from the top the cost of constructing the base is ₹20 per a square and the cost of construction per 4 walls is ₹50 square
please give me his solution ​

Answer 1

Answer:

area of base = 10×10= 100cm^2

cost of contructing the base=100×20=2000rs

lateral surface area or area of 4 walls is 4×10=40cm^2

coat of constructing walls = 40×50=2000rs