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    jmaupin's Avatar
    jmaupin Posts: 2, Reputation: 1
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    #1

    Nov 4, 2010, 03:20 PM
    Can you find the digit that makes each number divisible by 9? 54,78
    jmaupin's Avatar
    jmaupin Posts: 2, Reputation: 1
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    #2

    Nov 4, 2010, 03:21 PM
    Find the digit that makes each number divisible by 9? 42,97
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
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    #3

    Nov 4, 2010, 03:22 PM

    Can you find a way pof restating this question? There is no single DIGIT that answers this question but there might be a 3 or 4 digit number
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #4

    Nov 4, 2010, 04:33 PM
    What do you mean? Do you have to enter a number to the end of, say, 42 and create a three digit number divisible by 9?

    If so, note that a number is divisible by 9 if the sum of its digits is divisible by 9.

    Thus, if we had 3 to 42 to get 423, the sum of the digits (4+2+3=9) is divisible by 9, therefore, so is 423 divisible by 9.
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