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14 August, 03:40

If x y z are positive integers and 3x = 4y = 7z, then the least possible value of x + y + z is

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  1. 14 August, 04:07
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    The least possible value of x+y+z is 61.

    this is how we find this,

    if we find the LCM of 3,4 and 7 we get 84

    = 3 x (4x7) = 4x (3x7) = 7x (3x4)

    x+y+z = (4x7) + (3x7) + (3x4)

    =28 + 21+12

    =61
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