Question

Sally has 3 cats and each cat eats of a tin of cat food each day.

Sally buys 12 tins of cat food.
For how many days will the cat food feed her 3 cats?
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Answer 1

4 days

Explanation:

You want to know the number of days 12 tins of cat food will last.

Days

This can be considered to be a unit conversion problem.

`12\text{ tins}*\frac{1\text{ cat$\cdot$day}}{1\text{ tin}}*\frac{1}{3\text{ cats}}=(12)/(3)\text{ days}=\boxed{4\text{ days}}`

The cat food in 12 tins will feed Sally's cats for 4 days.

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