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March 26, 2017

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The difference between two positive number is 72 and one of them is divided by the other, the quotient is 4.Find those numbers.
Option:
a) 22&94
b) 24&96
c) 20&92
d) 30&102

  • Math - ,

    I'll be glad to check your answer.

  • Math - ,

    Let the 1st # = x
    And the 2nd # = y

    Difference between the two # is = 72

    x - y = 72 ---- Equation 1

    Then, one of the # divided by the other # which = 4

    x/y = 4 ----Equation 1


    x - y = 72 -- eq 1

    x / y = 4 -- eq 2

    x = 72 + y -- eq 3

    Sub eq 3 in eq 2 we get,

    [(72 + y) / y] = 4

    72 + y = 4y

    72 = 4y - y

    72 = 3y

    y = 72 / 3

    y = 24

    Now sub y = 24 in equation 1 or equatin 3 and solve for x?

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