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16 December, 03:38

David's age is four times Alisa's age. In eight years, David will be twice as old as Alisa. How old is each now?

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Answers (2)
  1. 16 December, 04:20
    0
    Alissa's current age = 4

    David's current age = 16

    Step-by-step explanation:

    if say Alissa is x years old then David is 4x years old

    in 8 years Alissa will be x+8, and David 4x+8 and that's twice as Alissa's age therefore:

    2 * (x+8) = 4x+8

    2x+16 = 4x+8

    16-8=4x-2x

    8=2x

    x=4
  2. 16 December, 04:37
    0
    David is 16 years old.

    Alisa is 4 years old.
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