1.

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.

Answer»

(I) 5.45 sq. meter(ii) Rs. 109Step-by-step explanation:(I) solution:AREA of SHEET required= 2lh + 2BH + 2lb= 1.95+1.625+1.875= 5.45 sq. meter(ii) solution:COST of sheet of 5.45 sq. m area = Rs. (20x5.45) = Rs. 109



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