jamalwarsame jamalwarsame
  • 24-03-2021
  • Mathematics
contestada

27
6 boys have a mean age of 10 years.
14 girls have a mean age of 5 years.
Work out the mean age of all 20 children.

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aff808666
aff808666 aff808666
  • 24-03-2021

not clear way ..... clear it

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becca1907 becca1907
  • 24-03-2021
10+5 =15
15 divided by 2 = 7.5
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