The average of 5 numbers is 60. When a new number is added, the average becomes 62. Find the new number.
- A. 89
- B. 72 ✓
- C. 87
- D. 66
Correct answer
B. 72
Explanation
Total of 5 numbers = 300. Total of 6 numbers = 372. New number = 372 - 300 = 72.
B. 72
Total of 5 numbers = 300. Total of 6 numbers = 372. New number = 372 - 300 = 72.