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2015-05-24T21:01:36+08:00

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We have the ratio:
1kg : 5 persons
So,
 \frac{1kg}{5people} = \frac{xkg}{20people}  \\ 20kg=5x \\ 4kg=x

We convert this to grams with 1 kg = 1000g
4kg* \frac{1000g}{1kg} =4000g

If we have P130 a kilo we just multiply this by 4 since we have 4kg.
4*P130=P520
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2015-05-24T21:14:11+08:00

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20 divided by 5=4 kg or 4,000 g

P 130 x 4=P 520

Hope this helps =)
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