Assume that you require studying six hours per week to earn a ‘C’, nine hrs a week to earn a ‘B’, and 15 hrs per week to earn an ‘A’. This would mean: (i) Raising returns to hrs studied. (ii) Diminishing returns to hrs studied. (iii) Steady returns to hrs studied. (iv) That additional study is a waste of time.
Can someone please help me in finding out the right answer of the above question.