Question

A water tank is made of iron sheet its dimension are 4m into 3 metre into 2.5 M find the cost of painting the inside that of the tank at the rate of 3 rupees per metre square

Answer 1

given -:

dimension of water tank are 4m, 3 m and 2.5 m

rate of paint = 3 rs per m^2

surface area of tank = 2*4*3 + 2*3*2.5 + 2*2.5*4

=> 24 + 15 + 20 = 59m^2

cost of painting = 59 * 3 = 177