Ranking in three groups

[John 4348]

Hello everyone
I am trying to rank students in 3 groups, for example (A2:A21,A22:A43,A44:62).I don't use table and I also would like the Range works dynamic.
If two students have the same score they will receive the same rank.

 

[Peter_SSs]

You're welcome. Glad we got there in the end. Thanks for the follow-up.

 

[morevijay1982]

=RANK(A2,$A$2:$A$21) use this one

 

[Peter_SSs]

=RANK(A2,$A$2:$A$21) use this one

How does that take any account that there are 3 different groups of numbers to rank?
Did you look at the layout and expected results in post #8?