Instructions
Here are the students, and the subjects. The maximum marks for each subject is 120.
Solution
THIS QUESTION WAS DELETED, BECAUSE THEY DIDN'T MENTION THAT THE TABLE CONSISTS OF PERCENTAGES RATHER THAN THE ACTUAL MARKS OF STUDENTS
If solved, the following will be the correct answers.
Average marks in Economics $$=\dfrac{70+80+75+60+70+65}{6}=70\%$$
Average marks in Economics $$=\dfrac{60+50+60+60+55+50}{6}=55.84\%$$