Cloth / textile

We have a cloth measuring 16 square meters. How many 20 cm by 20 cm by 8 cm bags can you make? Assume the bag is a cuboid without one top base.

Correct answer:

n =  125

Step-by-step explanation:

S=16 m2 cm2=16 10000  cm2=160000 cm2  a=20 cm b=20 cm c=8 cm  S1=2 a b+(a+b+a) c=2 20 20+(20+20+20) 8=1280 cm2 N=S/S1=160000/1280=125 n=N=125=125

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Showing 1 comment:
Dr Math
The bag is a block with a sidewall of 20x20 cm and a depth of 8 cm. The bag on top has no cloth, i.e., it is enough to sew a 30 cm x 8 cm strip of material to the two side walls. Otherwise, it would not be a bag but a closed pillow — an example of conversions of area units, its division by the surface of a block without one wall.

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