Question

To make a tank, its length is 15 meters wide and 10 meters deep is 6 meters and the top of the tank is open. Get the value of iron sheet at the rate of 2.50 per meter, while the sheet is 4 meters wide

Answer 1

TSA of the open tank=2h(l+b)+lb
                                     =2*6*25+150
                                         =450m2
               length of sheet=450/4
cost of iron sheet=(450/4)*2.5
                           =281.25 rupees