Q. The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is
✅ Correct Answer: (C)
35
Explanation: Given that , The average of five numbers = 27
Total sum of five numbers = 27 × 5 = 135
If one number is excluded, the average of five numbers = 25
Total sum of four numbers = 25 × 4 = 100
∴ Required number = 135 – 100 = 35
Total sum of five numbers = 27 × 5 = 135
If one number is excluded, the average of five numbers = 25
Total sum of four numbers = 25 × 4 = 100
∴ Required number = 135 – 100 = 35
Explanation by: Vaibhav Shukla
Given that , The average of five numbers = 27
Total sum of five numbers = 27 × 5 = 135
If one number is excluded, the average of five numbers = 25
Total sum of four numbers = 25 × 4 = 100
∴ Required number = 135 – 100 = 35
Total sum of five numbers = 27 × 5 = 135
If one number is excluded, the average of five numbers = 25
Total sum of four numbers = 25 × 4 = 100
∴ Required number = 135 – 100 = 35