A gamer scored an average of 60 points in the first 3 levels. In the 4th level, he scored 12 points more than his previous average. What is his average score across all 4 levels?
(a) 60
(b) 63
(c) 65
(d) 68
Correct Answer : Option b
Total of first 3 levels = 60 × 3 = 180
Fourth level score = 60 + 12 = 72 Total = 180 + 72 = 252 Average = 252/4 = 63
Hence correct option is b.
