an open plastic box 3m long, 2m wide and 1m deep is to be made. determine the area of the plastic sheet for making the box. find the cost of making 50 such boxes if ti costs Rs.2/m^2
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for base and the top=2×(3×2)=12m²
for sides with bottom as 2m= 2×(2×1)=4m²
for sides with bottom as 3m=2×(3×1)=6m²
hence total area of plastic sheet for one such box = 12+4+6=22m²
for 50 boxes = 22×50= 1100m²
so cost of the boxes= 1100×2=2200 Rs.
for sides with bottom as 2m= 2×(2×1)=4m²
for sides with bottom as 3m=2×(3×1)=6m²
hence total area of plastic sheet for one such box = 12+4+6=22m²
for 50 boxes = 22×50= 1100m²
so cost of the boxes= 1100×2=2200 Rs.
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