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90 to feed a family of 3 for a week

=> 30 to feed one for a week

=> 30*5 to feed a family of 5 for a week

ie 150.

However, this assumes that it costs the same to feed adults and children in a family (unlikely), and that there are no economies of scale (also unlikely).

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โˆ™ 2010-02-01 12:37:45
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Q: If it costs 90 to feed a family of 3 for one week how much will it cost to feed a family of 5 for one week?
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