Question: kamal obtained 81 , 68 , 82 , 69 and 90 marks ( out of 100 ) in english , mathematics , physics , chemistry and biology . what are his average marks ?
A) 65
B)  69
C)  72
D)  75
E)  none
Correct answer: e
Grade: 8 | Topic: Statistics and Probability | Difficulty: Easy | Standard: 8.SP.A.1