Hi everyone, any help in how to work out this problem would be much appreciated...

If it is sunny today, there is a 80% chance it will be sunny tomorrow, and a 20% chance it will be rainy. If it is rainy today, there is a 40% chance it will be rainy tomorrow, and a 60% chance it will be sunny.

In n days, how many of them will be sunny and how many will be rainy?