160. Hens and Eggs. Here is a new version of an old problem. Although it looks very complicated and confusing, it is extremely easy to solve with the right approach.

If one and a half hens lay one and a half eggs in one and a half days, then how many hens plus half a hen, laying eggs one and a half times faster, will lay ten eggs and a half in one and a half weeks?
160. Answer to the problem: half a chicken plus half a chicken, which is one chicken. If one and a half chickens lay one and a half eggs in one and a half days, then one chicken lays one egg in one and a half days. A chicken that lays better by one and a half times lays one and a half eggs in one and a half days, or one egg per day. Therefore, she will lay \(10 \frac{1}{2}\) eggs (a dozen and a half eggs) in \(10 \frac{1}{2}\) days (one and a half weeks).