A class of 30 students appeared in a test. The average score of 12 students is 62, and that of the rest is 60. What is the average score of the class?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 60.8.
Total score of the first 12 students = 12 × 62 = 744
Remaining students = 30 - 12 = 18
Total score of the remaining students = 18 × 60 = 1080
Total score of the entire class = 744 + 1080 = 1824
Average score = 1824/30 = 60.8
Therefore, the average score of the class is 60.8.