document.write( "Question 1149117: 80 coins are placed in a line on the ground. The distance between any two consecutive coins is 10 metres. How far must a person travel to bring them, one by one, to a basket placed 10 metres behind the first coin. \n" ); document.write( "
Algebra.Com's Answer #770474 by Alan3354(69443)\"\" \"About 
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80 coins are placed in a line on the ground. The distance between any two consecutive coins is 10 metres. How far must a person travel to bring them, one by one, to a basket placed 10 metres behind the first coin.
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\n" ); document.write( "You didn't say where the person started from.
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\n" ); document.write( "If he starts at the basket:
\n" ); document.write( "The 1st trip is 20 meters.
\n" ); document.write( "The 2nd trip is 40 meters.
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\n" ); document.write( "The last trip is 1600 meters.
\n" ); document.write( "The average trip is (1600 + 20)/2 = 810 meters
\n" ); document.write( "There are 80 trips
\n" ); document.write( "80*810 = 64800 meters\r
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