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If a farmer has 30 cows and has enough money to feed them for 28 days how many cows does he have to get rid of to feed them for 35 days?
Wiki User
∙ 12y ago
Assuming each cow consumes the same amount per day.
The farmer has enough for: 30 cows*28 days = 840 cow days
or 840 cows for 1 day
Therefore he can feed 840 cow*days/35days = 24 cows for 35 days.
30 cows - 24 cows = 6 cows
The farmer must get rid of 6 cows.
Wiki User
∙ 12y ago
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