A class of 60 students has an average score of 75. If 5 new students are added and the class average increases by 1, what is the average score of the 5 new students?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 88.
Total score of 60 students = 60 × 75 = 4500
Total score of 65 students = 65 × 76 = 4940
Total score of 5 new students = 4940 – 4500 = 440
Average score = 440/5 = 88