Answer :
Answer: The average mark is n.
Explanation: The average mark is a average of averages. The average mark of class of p student is n, and q student is n, so n+n/2= 2n/2=n.
Answer: The average mark is n.
Explanation: The average mark is a average of averages. The average mark of class of p student is n, and q student is n, so n+n/2= 2n/2=n.