Question

in a canteen food is sufficient for 800men for 28 days.100men leave the canteen.for how many days food will be sufficient
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Answer 1

It is given that in a canteen food is sufficient for 800men for 28 days

Now, the situation is that 100 men left the canteen

We have to find for how many days food will be sufficient for the remaining men

Remaining men = 800 - 100

                          = 700

We will use the unitary method

food for 800 men = 28 days

food for 700 men = $28 \times\frac{700}{800}$

                             = $28 \times \frac{7}{8}$

                              =24.5 days

So, the food will last for 24 and a half day

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