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A set of 6 numbers has a mean of 30.
If each number is multiplied by 2,
what is the mean of the new set of numbers?

Class 7Arithmetic MeanData Handling
  • A66
  • B60
  • C54
  • D120

Step-by-Step Solution

Multiplying every value by 2 doubles the total and hence the mean: new mean = .
Answer: B) 60

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