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Janine is 7 years younger than Lucy and 4 years older thanSamantha. The average of their ages is 16.   What are their ages?

 Feb 1, 2021
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J = L-7

S = L-11

L

 

Averaged =16

 

(L-7  +   L-11   + L) / 3 = 16

3L -18 = 48

3L = 66

L = 22        so   J = 15     And  S = 11

 Feb 1, 2021

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