Q15. The cost for packing a cuboidal gift is Rs 150. Find the area of sheet required to pack the gift if it cost of packing is Rs 3.
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1
Answer:
cuboidal gift is RS 150
cost of packing is RS 3
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5
Answer:
(base area )
- (2(l+b),h)+(l multiple b)
-(2(1.50+1.25)0.65m2+)(1.50 multiple 1.25m2)
-(2multiple2.75multiple0.65m2)+(1.875m2
=3.575m2+1.875m=5.45m)
araa of the sheet required for making the box = 5.45m2
rate of sheet rs 20 perm2 cost of 5.45m2=rs20×5.45
=rs 20 ×545 × 100 =Rs 109
cost of required sheet rs 109
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