Hi, I have discussed this question in live doubt class earlier.I have attached the recording of that class .This is the 9th question in the recording.Link of the recording -  https://catking.testpress.in/courses/439/contents/117144/Let me know if you still have any doubt.Happy Learning!

How to solve such questions How many 5 digit numbers have sum of digits =12?

How to solve such questions How many 5 digit numbers have sum of digits =12?