document.write( "Question 915392: My sum is between 5 and 10. I am a double plus one. Who could I be? \n" ); document.write( "

Algebra.Com's Answer #555718 by KMST(5328) $\"\"$ $\"About$

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Are we talking about the sum of the digits of a number?
\n" ); document.write( "Is that a 2-digit number? A 3-digit number?
\n" ); document.write( "
\n" ); document.write( "IF we are talking about a 2-digit number,
\n" ); document.write( "whose sum of digits is between 5 and 10 (including 5 and 10),
\n" ); document.write( "and the number is a double plus 1 (meaning an odd number),
\n" ); document.write( "there are many possibilities.
\n" ); document.write( "Among odd 2-digit numbers ending in 1,
\n" ); document.write( "the numbers whose sum of digits is 5, 6, 7, 8, 9, or 10 are:
\n" ); document.write( "41, 51, 61, 71, 81, and 91.
\n" ); document.write( "Among odd 2-digit numbers ending in 3,
\n" ); document.write( "the numbers whose sum of digits is 5, 6, 7, 8, 9, or 10 are:
\n" ); document.write( "23, 43, 53, 63, and 73.
\n" ); document.write( "Among odd 2-digit numbers ending in 5,
\n" ); document.write( "the numbers whose sum of digits is 6, 7, 8, 9, or 10 are:
\n" ); document.write( "15, 25, 35, 45, and 55 (and there is none with 2 digits adding to 5).
\n" ); document.write( "Among odd 2-digit numbers ending in 7,
\n" ); document.write( "the numbers whose sum of digits is 8, 9, or 10 are:
\n" ); document.write( "17, 27, and 37.
\n" ); document.write( "Finally, among odd 2-digit numbers ending in 9,
\n" ); document.write( "the only numbers whose sum of digits is between 5 and 10 is
\n" ); document.write( "19. \n" ); document.write( "

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