document.write( "Question 1087743: monica, veronica and rachael began to jog around a circular stadium. they complete their revolution in 42 second, 56 second and 63 second respectively. after how many seconds will they be at the starting point \n" ); document.write( "

Algebra.Com's Answer #702036 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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monica, veronica and rachael began to jog around a circular stadium. they complete their revolution in 42 second, 56 second and 63 second respectively. after how many seconds will they be at the starting point
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\n" ); document.write( "Find the least common multiple by prime factoring each
\n" ); document.write( "42: 2*3*7
\n" ); document.write( "56: 2*2*2*7
\n" ); document.write( "63: 3*3*7
\n" ); document.write( "FInd the LCM: 2*2*2*3*3*7 = 504 sec they will all be at the starting point
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\n" ); document.write( "M makes 12 revolutions
\n" ); document.write( "V makes 9
\n" ); document.write( "R makes 8
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