A ship leaves NY for San Fransisco on the first of every month at noon. At the same time, a ship leaves San Fransisco for NY. Each ship arrives exactly 6 months after it leaves. If you were on a ship from NY, how many ships from San Fransisco would you meet?

I meet all the ones that left during the 6 months before I left plus all the ones that left during my trip so about 12

To determine how many ships from San Francisco you would meet if you were on a ship from New York, we need to analyze their travel schedules.

Each ship leaves on the first of every month and takes exactly 6 months to reach its destination. Therefore, there would be two scenarios:

1. If you leave from New York on the first of the month:
- The first ship from San Francisco would leave on the same day as yours, and you would meet when both ships arrive at their destinations after 6 months.
- As the ships depart on the same schedule, you would meet one ship from San Francisco.

2. If you leave from New York on any other day of the month:
- The first ship from San Francisco would leave on the first of the following month.
- This means that you would reach San Francisco one month earlier than the ship from San Francisco, and you would need to wait for it to arrive.
- Therefore, you would meet zero ships from San Francisco in this scenario.

In summary, if you were on a ship from New York and you left on the first of the month, you would meet one ship from San Francisco. However, if you left on any other day of the month, you would not meet any ships from San Francisco.