The following table shows the marks (in percentages) obtained by six students in four different subjects in an examination. Maximum marks in each subject are 100.

Answer the following question based on the table:

What is the number of students whose overall percentage obtained is 80% and above?

4

Overall percentage of A = \(\frac{92 + 90 + 90 + 80 }{400}\) × 100

= 88%

Overall percentage of B = \(\frac{90 + 80 + 85 + 85 }{400}\) × 100 

= 85%

Overall percentage of C = \(\frac{80 + 80 + 65 + 70 }{400}\) × 100

= 73.75%

Overall percentage of D = \(\frac{85 + 80 + 82 + 75 }{400}\) × 100

= 80.5%

Overall percentage of E = \(\frac{80 + 75 + 75 + 85 }{400}\) × 100

= 78.75%

Overall percentage of F = \(\frac{90 + 90 + 90 + 85 }{400}\) × 100

= 88.75%

Students with more than 80% are A , B , D & F

Number of students with overall percentage more than 80% = 4