The average of five numbers is 27. If one number is excluded,

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The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is :

1. 25
2. 27
3. 30
4. 35

Correct Option: D

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