document.write( "Question 750562: Three bells ring at the interval of 10,15 and 20 minutes respectively . If they all ring at 11 a.m at once,what time they ring together again ? Please show process also and answer also.
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Algebra.Com's Answer #456688 by FrankM(1040)\"\" \"About 
You can put this solution on YOUR website!
We need the lowest common multiple of 10,15,and 20\r
\n" ); document.write( "\n" ); document.write( "10 = 2*5
\n" ); document.write( "15 = 3*5
\n" ); document.write( "20 = 2*2*5\r
\n" ); document.write( "\n" ); document.write( "These are the prime factorization for these numbers.\r
\n" ); document.write( "\n" ); document.write( "2*2*3*5 = 60 This is the lowest common multiple.\r
\n" ); document.write( "\n" ); document.write( "Noon is the answer.
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