Question

A 12 meter long, 9 meter width and 4 meter high iron tank is to be built. If the rate of 2 meter wide sheet is Rs 5 per metre, then find the cost of iron sheet.​

Answer 1

Answer:

Length l=12m

Breadth b=9m

Height h=4m

⇒ Total surface of the tank =2(l×b+b×h+h×l)

                                               =2(12×9+9×4+4×12)

                                               =2×(108+36+48)

                                               =192×2

                                               =384m2

⇒ Length of the sheet required =2384m

                                                       =192m

∴ Cost of the sheet =192×5

                                  =960

∴ Total cost of the sheet =Rs.960.

Hence, the answer is 960.