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Suppose 6 numbers have a mean of 8.
If 5 is added to the first number, 5 is subtracted from the second, and the other four stay the same,
what is the new mean?

Class 7Arithmetic MeanData Handling
  • A16
  • B8
  • C7
  • D9

Step-by-Step Solution

Adding 5 to one number and subtracting 5 from another leaves the total unchanged, so the mean stays 8.
Answer: B) 8

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