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F it costs $90 to feed a family of 3 for one week. (3 points)

a. What is the cost to feed each person?
b. How much will it cost to feed a family of 5 for one week?
c. How much will it cost to feed a family of six?

1 Answer

6 votes
Given:
$90 good for 3 pax for 1 week.

a) $90 / 3 = $30 cost to feed each person in a week
b) $30 cost to feed each person * 5 persons = $150
c) $30 cost to feed each person * 6 persons in a family = $180

The formula derived from the above facts is:

Total cost = cost per person * no. of person * no. of weeks.

Assuming = 6 persons for 2 weeks
Total cost = 30 x 6 x 2
Total cost = 180 x 2
Total cost = 360 cost to feed a family of 6 in 2 weeks.

User Aderushev
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