Question

Mr. Kashif got an average of 50 in 6 tests. What should he get in the next test to attain the average of 60 ?

Answer 1

Marks of 7 tests - marks of 6 tests

= 60 x 7 - 50 x 6

= 420 - 300

= he should get 120 marks in next test for an average of 60