SOLUTION: A closed box is cuboid shape whose lenfth is40cm breadthis30cm height is50cm it is made of thin metal sheet find the cost of metal sheet required to make 20such boxes if 1msquare o

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Question 1081957: A closed box is cuboid shape whose lenfth is40cm breadthis30cm height is50cm it is made of thin metal sheet find the cost of metal sheet required to make 20such boxes if 1msquare of metal sheet costs rupees 45
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
surface area = 2(40 * 30) + 2(40 * 50) + 2(30 * 50) = 9,400 cm^2 = 0.94 m^2

20 boxes = 18.8 m^2 = 846 rupees