document.write( "Question 344375: A distant planet has 4 moons. The first moon takes 6 earth years to circle the planet. The 4th moon takes 18 earth years to circle the planet. How many earth years will it take for the 4 moons to be in conjunction? \n" ); document.write( "
Algebra.Com's Answer #246500 by Alan3354(69443)\"\" \"About 
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The periods of the other 2 moons has to be given.
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