Question

To secure A grade one must obtain an average of 90 marks or more in 5 subjects each of maximum 100 marks. If one scored 84, 87, 95, 91 in first four subjects, what is the minimum mark one scored in the fifth subject to get A grade in the course?

Answer 1

Required marks = 5 × 90 = 450 

Total marks obtained in 4 subjects = 84 + 87 + 95 + 91 = 357 

So required marks in the fifth subject = 450 – 357 = 93