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John, Kevin, and Jane have $120. Jane has a third of what John has and Kevin has twice as much as Jane.?

the whole question is: John, Kevin, and Jane have $120. Jane has a third of what John has and Kevin has twice as much as Jane. How much money, in dollars, does Kevin have?

i just a formula on how to solve thanks!!!

2 Answers

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  • 6 years ago
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    John, Kevin and Jane have $120.

    Formula:

    j + k + a = 120

    Jane has a third of what John has

    a = j

    or

    j = 3a

    and Kevin has twice as much as Jane.

    k = 2a

    Find how much Jane has using the 1st equation, replace j and k

    3a + 2a + a = 120

    6a = 120

    a = 120/6

    a = $20

    How much money does, in dollars, does Kevin have?

    k = 2a

    k = 2(20)

    k = $40

    Source(s): Common Sense
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  • Anonymous
    6 years ago

    Assume, john has amount x ; then jane has x/3 and kevin has 2x/3 . therefore, (x+x/3+2x/3)=120

    that gives us, x=60.........so, kevin has 40(answer)

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