SOLUTION: Im am a two digit composite number.the sum of my digits is 6.I am divisible by 7.what number am i

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Question 386332: Im am a two digit composite number.the sum of my digits is 6.I am divisible by 7.what number am i
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I am a two digit composite number.
the sum of my digits is 6.
I am divisible by 7.
what number am i
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Let the number be 10t+u.
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Since the sum of the digits is 6
the t/u possible t/u pairs are
0/6;1/5;2/4;3/3;4/2;5/1;6/0
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That gives you the following numbers:
6;15;24;33;42;51;60
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Only 42 is divisible by 7.
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Answer: 42
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Cheers,
Stan H.
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