The mean age of 12 boys involved survey is 19 years, 3 months. lf the-age…

Mathematics NECO 2001

The mean age of 12 boys involved survey is 19 years, 3 months. lf the-age of one of the boys is 22 years, what is the mean age of the other-boys?

  • 10.5 years
  • 19.0 years checkmark
  • 35.4 years
  • 264.0 years
  • 423.5 years

The correct answer is: B

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