The average of 5 numbers is 39. If one number 115 is excluded, find the new average.
- A. 25
- B. 17
- C. 19
- D. 20 ✓
Correct answer
D. 20
Explanation
Total of 5 numbers = 195. New total = 195 - 115 = 80. New average = 80/4 = 20.
D. 20
Total of 5 numbers = 195. New total = 195 - 115 = 80. New average = 80/4 = 20.