So that ZIP codes may be machine readable?

So that ZIP codes may be machine readable?

So that ZIP codes may be machine readable, the Postal Service encodes them as a
group of five bars, some tall, some short, in groups of five. In how many distinct
ways can two tall and three short bars be arranged?

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1 Comment for So that ZIP codes may be machine readable?

  • 1. karan  |  February 15th, 2011 at 8:35 am

    you can use probability for this
    the ans may be–12

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