#### The food we eat remains in the stomach for a maximum of 4 hours. For what fraction of a day, does it remain there?

Total number of hours food remains in the stomach = 4 hours.
Total number of hours in a day $=24$ hours
The required fraction $=\frac{4}{24}=\frac{\frac{4} {4}}{\frac{24}{4}}=\frac{1}{6}$