document.write( "Question 258977: There are more than 1/4 million species of beetle. Assume the average length of a beetle is 1cm and the average walking speed is 10 cm per second. These beetles walk up a gang-plank that is 5 meters long onto an ark. They do this in pairs, side by side, one male and one female from each species. The pairs of beetles are spaced 5 cm apart. How many hours will it take for 1/4 million species of beetles to embark onto the ark once the first pair starts up the gangplank?
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Algebra.Com's Answer #190733 by Alan3354(69443)\"\" \"About 
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There are more than 1/4 million species of beetle. Assume the average length of a beetle is 1cm and the average walking speed is 10 cm per second. These beetles walk up a gang-plank that is 5 meters long onto an ark. They do this in pairs, side by side, one male and one female from each species. The pairs of beetles are spaced 5 cm apart. How many hours will it take for 1/4 million species of beetles to embark onto the ark once the first pair starts up the gangplank?
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\n" ); document.write( "The length of the column will be 250000*6 cm (if there's 5 cm between them, not 5 cm from center to center, that wasn't clarified)
\n" ); document.write( "L = 1500000 cm
\n" ); document.write( "At 10 cm/sec, it will take 150000 seconds to pass the bottom of the gang-plank
\n" ); document.write( "+ 500/10 seconds for them to go up the gang-plank
\n" ); document.write( "--> 150050 seconds total
\n" ); document.write( "t = 15005/6 minutes
\n" ); document.write( "t = 3001/72 hours
\n" ); document.write( "t =~ 41.68 hours
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\n" ); document.write( "Were they in 1st class? Or coach?
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