math

Khalid is now four times as okd as his daughter. Ten years ago,if the sum of their ages was sixty. Find the present age of his daughter?

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asked by ramzan
  1. khalid=k
    daughter=d
    first statement
    k=4d...(1)
    second statement
    (k-10)+(d-10)=60.
    k+d=60+20
    k+d=80...(2)
    plug 1 into 2 and there you go

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    posted by collins

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