The average of 4 numbers is 60. When a new number is added, the average becomes 65. Find the new number.
- A. 76
- B. 103
- C. 96
- D. 85 ✓
Correct answer
D. 85
Explanation
Total of 4 numbers = 240. Total of 5 numbers = 325. New number = 325 - 240 = 85.
D. 85
Total of 4 numbers = 240. Total of 5 numbers = 325. New number = 325 - 240 = 85.