The average of 6 numbers is 63. When a new number is added, the average becomes 68. Find the new number.
- A. 105
- B. 98 ✓
- C. 113
- D. 106
Correct answer
B. 98
Explanation
Total of 6 numbers = 378. Total of 7 numbers = 476. New number = 476 - 378 = 98.
B. 98
Total of 6 numbers = 378. Total of 7 numbers = 476. New number = 476 - 378 = 98.