The average of 6 numbers is 57. When a new number is added, the average becomes 62. Find the new number.
- A. 79
- B. 104
- C. 92 ✓
- D. 86
Correct answer
C. 92
Explanation
Total of 6 numbers = 342. Total of 7 numbers = 434. New number = 434 - 342 = 92.
C. 92
Total of 6 numbers = 342. Total of 7 numbers = 434. New number = 434 - 342 = 92.