Question

a tank is 20 metre length 15 minute and breadth and vomiting in the act and the cost of cement and its floor and the four walls at the rate of
50 M per square metre

Answer 1

l= 20 m

b= 15 m

h= 4 m

First we find the area of floor

=>20x15

=>300 m²

Then, we find area of walls

=>2(20x4) + 2(15x4)

=>2(80 + 60)

=>280 m²

Add both to get total area

=>300+280 = 580 m²

Multiply total area and cost per m²

=>580 x 12

=>Rs. 6960