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11 February, 05:02

Ericas apartment house are consecutively numbered on each floor. the sum of her and her neighbors number is 2409. what are the 2 numbers?

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  1. 11 February, 05:06
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    2 apartments consecutively numbered : x and x + 1

    x + (x + 1) = 2409

    2x + 1 = 2409

    2x = 2409 - 1

    2x = 2408

    x = 2408/2

    x = 1204

    x + 1 = 1204 + 1 = 1205

    so the 2 numbers are : 1204 and 1205
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