The average of 7 numbers is 47. If one number 74 is excluded, find the new average.
- A. 48.48
- B. 49.53
- C. 42.5 ✓
- D. 34.3
Correct answer
C. 42.5
Explanation
Total of 7 numbers = 329. New total = 329 - 74 = 255. New average = 255/6 = 42.5.
C. 42.5
Total of 7 numbers = 329. New total = 329 - 74 = 255. New average = 255/6 = 42.5.