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Q
The average of 5 numbers is 27. If one number is excluded, the average becomes 25. The excluded number is-
Solution
Average of 5 numbers = 27Total sum of 5 numbers = 5 × 27 = 135Let the excluded number be = AAverage of 4 numbers...
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Keynote
ISRO (2012) Placement questionThe new average is = 27 + (5 − 1)(27 − 25)= 27 + 8 = 35
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