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2 March, 19:44

The sum of three numbers is 112. The second number is 4 times the third. The first number is 8 less that the third. What are the numbers?

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  1. 2 March, 21:42
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    First number (x) = 12

    Second number (y) = 80

    Third number (z) = 20

    Step-by-step explanation:

    Let assume x, y, z to represent first, second and third respectively.

    X + y + z = 112

    Y = 4z

    X = z - 8

    So therefore

    (Z-8) + (4z) + z = 112

    Z + 4z + z = 112 + 8

    6z = 120

    Z = 120/6

    Z = 20.

    So,

    First x = z - 8

    20 - 8 = 12

    Second y = 4z

    4 x 20 = 80

    Third z = 20
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