I was wondering whether the scores on the problems could be graded. eg A- you should really be doing the harder set. B- excellent consider doing the harder set c- you are doing the right set of problems d- consider doing the easier set e- you should definitely be doing the easier set.

I am getting about 60-70% on the intermediate. They are always a challenge but I manage to do what I consider OK but with lots of room for improvement. But should I be doing the beginner's set instead?

Malcolm Kennedy