Asked by Anonymous

Paul wrote five tests which were marked out of a total of 200 marks. Paul scored 40 out of 50 in a 6th test. What was his NEW average? HoW do I work out this type of sum.
Answered by PsyDAG
It would help if you proofread your questions before you posted them.

Data missing. "marked __ out of a total of 200 marks."

mean = ∑x/n