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A food factory produces a kind of meat floss rolls. The food factory designs the boxes into two types: cylinder and cuboid. Each box can hold 20 meat floss rolls.

(1), space utilization = volume of food ÷ volume of box × 100

Space utilization of cuboid box = (20πrrh)÷(abh)=(20πrr)÷( ab)×100

The space utilization rate of the cylindrical box = (20πrrh)÷(πRRh)=(20rr)÷(RR)×100

(2), the cylindrical box and Ratio of space utilization of cuboid box

=[(20rr)÷(RR)×100]÷[(20πrr)÷(ab)×100]

=(ab) ÷(πRR)

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