If a sheet measuring 1m2 costs Rs 15. The cost of sheet required for making a cuboidal box of dimension 5 m × 6.5m × 6 m is
Rs 1200
Rs 3045
Rs 4260
Rs 1256
If a sheet measuring 1 m2 costs Rs 25. The cost of sheet required for making a cubical box of edge 2.5 m is
A plastic box 1.5 m long, 1.25 m wide and 65 cm deep, is to be made. It is to be open 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 m2 costs Rs 20.