document.write( "Question 8845: a five-digit perfect square in the form of 5abc6 has a thousands digit a, hundreds digit b, and tens digit c. if a< b< c, what is the sum of a+b+c? \n" ); document.write( "
Algebra.Com's Answer #4852 by khwang(438)\"\" \"About 
You can put this solution on YOUR website!
First of allyou posted the question in wrong category.\r
\n" ); document.write( "\n" ); document.write( " The number 5abc6 > 50006 ,since sqrt(50006)~ 223.6202138
\n" ); document.write( " And we know that if the last digit of a perfect square x^2 is 6 then
\n" ); document.write( " the last digit of x must be 4 or 6.\r
\n" ); document.write( "\n" ); document.write( " Starting from 224, we try as the table below:\r
\n" ); document.write( "\n" ); document.write( " x x^2
\n" ); document.write( "--------------
\n" ); document.write( " 224 50176 a=0, b =1, c = 7,a+b+c = 8
\n" ); document.write( " 226 51076 No, violates to a < b < c
\n" ); document.write( " 234 54756 No, violates to a < b < c
\n" ); document.write( " 236 55696 OK,a+b+c = 20
\n" ); document.write( " 244 59536 No, violates to a < b < c
\n" ); document.write( " 246 60516 Stop,too big (the first digit > 5)\r
\n" ); document.write( "\n" ); document.write( " Hence, the possible values of a+b+c = 8 or 20.\r
\n" ); document.write( "\n" ); document.write( " In my opinion, it should belong to MS Excel,and not a real math
\n" ); document.write( " question.\r
\n" ); document.write( "\n" ); document.write( " Kenny
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