Question
The average of 5 numbers is 24. If one number is
removed, the average of the remaining 4 numbers becomes 21. Find the number that was removed.Solution
Sum of 5 numbers = 5 × 24 = 120 Sum of remaining 4 numbers = 4 × 21 = 84 Number removed = 120 − 84 = 36 Answer: 36
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