What Are The Average Marks Obtained By All The Seven Students In Phys

1.	What Are The Average Marks Obtained By All The Seven Students In Physics?
Answer» Average marks obtained in PHYSICS by all the seven STUDENTS =1/7x [ (90% of 120) + (80% of 120) + (70% of 120) + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ] =1/7x [ (90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120 ] =1/7x [ 520% of 120 ] =624/7 = 89.14. Average marks obtained in Physics by all the seven students =1/7x [ (90% of 120) + (80% of 120) + (70% of 120) + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ] =1/7x [ (90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120 ] =1/7x [ 520% of 120 ] =624/7 = 89.14.

What Are The Average Marks Obtained By All The Seven Students In Physics?

Answer»

Average marks obtained in PHYSICS by all the seven STUDENTS

=1/7x [ (90% of 120) + (80% of 120) + (70% of 120) + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ]

=1/7x [ (90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120 ]

=1/7x [ 520% of 120 ]

=624/7

= 89.14.

Average marks obtained in Physics by all the seven students

=1/7x [ (90% of 120) + (80% of 120) + (70% of 120) + (80% of 120) + (85% of 120) + (65% of 120) + (50% of 120) ]

=1/7x [ (90 + 80 + 70 + 80 + 85 + 65 + 50)% of 120 ]

=1/7x [ 520% of 120 ]

=624/7

= 89.14.