The average of 12 results is 75. If the top two results are excluded, the average becomes 72. What is the average of the top two results?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 90.
Total of 12 results = 12 × 75 = 900
After removing the top two, the total of 10 results = 10 × 72 = 720
Top two total = 900 – 720 = 180
Average of top two results = 180/2 = 90