Given that the mean of five numbers is 28. If one of them is excluded, the mean gets reduced by 5. Determine the excluded number.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e 48.
| Understanding/Application |
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Mean of 5 numbers = 28 Sum of 5 numbers = (28 × 5) = 140 |
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Acc. to the question - Mean of 4 numbers = (28 - 5) = 23 Sum of 4 numbers = (23 × 4) = 92 Excluded number = Sum of 5 numbers - Sum of 4 numbers = 140 - 92 = 48 |