A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is opened at the top. Ignoring the thickness of the plastic sheet, determine:
(i) The area of the sheet required for making the box.
(ii) The cost of sheet for it, if a sheet measuring 1
costs Rs 20.
Solution (i)
Length of open plastic box
m
Breadth of open plastic box
m
Height of open plastic box
cm
m
The area of the sheet required for making the open plastic box
(Because it is open from the top)
Solution (ii)
1
of sheet costs Rs 20
5.45
of sheet would cost
Rs
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