AVERAGE of 21 numbers is 12, TOTAL = 21 × 12 = 252Average after EXCLUDING 1 number = 10.5 × 20 = 210So the excluded number = 252 - 210 = 42 "> AVERAGE of 21 numbers is 12, TOTAL = 21 × 12 = 252Average after EXCLUDING 1 number = 10.5 × 20 = 210So the excluded number = 252 - 210 = 42 ">
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The average of 21 numbers is 12. If one number is excluded, the average becomes 10.5. What is the excluded number?

General Knowledge General Awareness in General Knowledge . 6 months ago

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AVERAGE of 21 numbers is 12, TOTAL = 21 × 12 = 252Average after EXCLUDING 1 number = 10.5 × 20 = 210So the excluded number = 252 - 210 = 42
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Posted on 22 Nov 2024, this text provides information on General Knowledge related to General Awareness in General Knowledge. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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