Question

A closed iron tank 12 m long 9 wide and 4 deep is to be made determined the cost of the iron sheet used @ rupees 5 per metre, sheet being 2 metre wide

Answer 1

TSA of the tank = 2[length×breadth + breadth×height + height×length] = 2[12×9+9×4+4×12]

 = 384 m2

so, length × breadth = 384 ⇒ length = 384 / 2 = 192 m  [as sheet is 2 m wide]

cost= 192×5
= 960 Rs.

Answer 2

Answer:

₹960

Step-by-step explanation:

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