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If a code word is defined to be a sequence of different [#permalink]
23 Jun 2006, 14:35
If a code word is defined to be a sequence of different letters chosen from the 10 letters A B C D E F G H I J what is the raatio of the number of 5 letter code words to the number of 4 letter code words.
: Social ventures, both non-profits and for-profits, seek to better the world in such industries as education, microfinance, workforce development, public health and community development, among others. Organizations that...