document.write( "Question 252532: the floor of a square hall is tiled with unbroken square tiles . along the two diagonals there are 125 tiles altogether . how many tiles are there in the hall?\r
\n" ); document.write( "\n" ); document.write( "a 15625 b 15624 c 1537 d 2985 e 3969
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Algebra.Com's Answer #184497 by edjones(8007)\"\" \"About 
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Draw a diagram of a square with 25 equal squares in it. Count the squares along the 2 diagonals. There are 9. because you didn't count the central square twice.
\n" ); document.write( "If you add 1 and divide by 2 you get the number of squares on each side.
\n" ); document.write( "125+1=126
\n" ); document.write( "126/2=63 tiles on a side
\n" ); document.write( "63^2=3969 tiles in the hall.
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