The average of 10 numbers is 24. When a new number is added, the average becomes 29. Find the new number.
- A. 97
- B. 93
- C. 68
- D. 79 ✓
Correct answer
D. 79
Explanation
Total of 10 numbers = 240. Total of 11 numbers = 319. New number = 319 - 240 = 79.
D. 79
Total of 10 numbers = 240. Total of 11 numbers = 319. New number = 319 - 240 = 79.