Question

A farmer has enough food to feed 20 animals in his cattle for 6 days. How long

would the food last if there were 10 more animals in his cattle?

Answer 1

Food supply would only last 4 days

Explanation:

(20 cattle)(6 days) = 120 cattle·days (this is the current feed supply on hand)

20 cattle + 10 = 30 cattle total

(120 cattle·days) / (30 cattle) = 4 days