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Question : The average of 9 numbers is 47. If a number is removed, then the average becomes 48. Which number was removed?

Option 1: 39

Option 2: 42

Option 3: 45

Option 4: 40


Team Careers360 3rd Jan, 2024
Answer (1)
Team Careers360 19th Jan, 2024

Correct Answer: 39


Solution : Given that the average of 9 numbers is 47, the sum of these 9 numbers = 47 × 9 = 423
If one number is removed and the average becomes 48, the sum of the remaining 8 numbers = 48 × 8 = 384
Required number = 423 – 384 = 39
Hence, the correct answer is 39.

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