Zyrelle is now 20 years older than her sister. Find the present age of Zyrelle

Discussion in 'Calculator Requests' started by math_celebrity, Apr 21, 2021.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    Zyrelle is now 20 years older than her sister. Find the present age of Zyrelle

    Let Zyrelle's age be z.
    Let her sister's age be s.
    Older means we add, so we have:
    z = s + 20
     
    math_celebrity, Apr 21, 2021
    #1

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