document.write( "Question 836115: if 5 digits number
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Algebra.Com's Answer #503980 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
There are many ways to get to the answer.
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\n" ); document.write( "There are 5 odd digits: 1, 3, 5, 7, and 9.
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\n" ); document.write( "How many 5-digit numbers can we make using those digits without repetition?
\n" ); document.write( "We have 5 ways to choose the first digit.
\n" ); document.write( "For each of those choices, there will be 4 ways to chose the second digit.
\n" ); document.write( "For each set of first and second digit choices, there will be 3 ways to chose the third digit.
\n" ); document.write( "For each set of first, second and third digit choices, there will be 2 ways to chose the fourth digit.
\n" ); document.write( "all in all, there are \"5%21=5%2A4%2A3%2A2=120\" possible 5-digit numbers made from the 5 odd digits without repeating digits.
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\n" ); document.write( "All 5 of those 5 odd digits are equally likely as the last (units) digit.
\n" ); document.write( "The last digit will be a 1 in \"120%2F5=24\" of those \"120\" numbers.
\n" ); document.write( "The last digit will be a 3 in another 24 numbers, a 5 in another 24, a 7 in another 24, and a 9 in another 24 numbers.
\n" ); document.write( "All the last digits added up will add up to
\n" ); document.write( "\"24%2A%281%2B3%2B5%2B7%2B9%29=24%2A25=600\" .
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\n" ); document.write( "The sum of the tens digits will also be \"600\" ,
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\n" ); document.write( "The value of the sum of all the numbers will be
\n" ); document.write( "\"600%2A10000%2B600%2A1000%2B600%2A100%2B600%2A10%2B600=%226+%2C+666+%2C+600%22\"
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