document.write( "Question 473057: - One hundred stones are placed on the ground 3 feet apart, the first being 3 feet from the basket and all of the stones are in a straight line, how far does a person travel who starts from the basket and bring the stone to it one by one?
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Algebra.Com's Answer #324359 by Edwin McCravy(20056)\"\" \"About 
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document.write( "He goes 3 feet from the basket, turns around, walks another 3 feet\r\n" );
document.write( "back to the basket.  That's 6 feet he's walked until he returns to\r\n" );
document.write( "the basket the 1st time.  \r\n" );
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document.write( "Then he goes 6 feet from the basket, turns around, walks another 6 feet\r\n" );
document.write( "back to the basket.  That's 12 feet he's walked until he returns to\r\n" );
document.write( "the basket the 2nd time.\r\n" );
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document.write( "The series is\r\n" );
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document.write( "6 + 12 + 18 + ...\r\n" );
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document.write( "It has 100 terms. n = 100, a1 = 6, d = 6\r\n" );
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document.write( "Sn = \"n%2F2\"[2a1 + (n-1)d]\r\n" );
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document.write( "S100 = \"100%2F2\"[2(6) + (100-1)*6]\r\n" );
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document.write( "S100 = 50[12+99*6]\r\n" );
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document.write( "S100 = 50[12+594]\r\n" );
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document.write( "S100 = 50[606]\r\n" );
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document.write( "S100 = 30300 feet or 5 miles 3900 feet, about 5.7 miles.\r\n" );
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document.write( "Edwin
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