Traditional Culture Encyclopedia - Weather forecast - The weather here is sunny and rainy.

The weather here is sunny and rainy.

9 days

If you live x days, you will have x mornings and x afternoons.

There are X-5 rainy afternoons and X-6 rainy mornings.

So (X-5)+(X-6)=7.

Then X=9.

Because the total rain in the morning and afternoon is seven times ~