The average of 10 numbers is 75. If one number 113 is excluded, find the new average.
- A. 65.24
- B. 60.07
- C. 81.21
- D. 70.78 ✓
Correct answer
D. 70.78
Explanation
Total of 10 numbers = 750. New total = 750 - 113 = 637. New average = 637/9 = 70.78.
D. 70.78
Total of 10 numbers = 750. New total = 750 - 113 = 637. New average = 637/9 = 70.78.