The average of 6 numbers is 54. When a new number is added, the average becomes 56. Find the new number.
- A. 68 ✓
- B. 74
- C. 79
- D. 72
Correct answer
A. 68
Explanation
Total of 6 numbers = 324. Total of 7 numbers = 392. New number = 392 - 324 = 68.
A. 68
Total of 6 numbers = 324. Total of 7 numbers = 392. New number = 392 - 324 = 68.