albusaidi1970 albusaidi1970

12-02-2018
Mathematics

contestada

Mary is two times as old as nancy. nancy is 1/3 lucy's age. who is the oldest?

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LammettHash LammettHash

12-02-2018

[tex]m=2n[/tex]
[tex]n=\dfrac \ell3\implies \ell=3n[/tex]

[tex]n<2n<3n\implies n<m<\ell[/tex]

Lucy is the oldest.

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