document.write( "Question 1203170: Alan, Ben, Collin and David bought a gift for their teacher and shared the cost equally. David did not bring any money so the rest of the boys paid for his share first. Collin paid 5/9 of the total paid by Alan and Ben that day. Alan paid $4 more than Ben. When David paid the 3 boys the next day, Collin received $36 from him.\r
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document.write( "(a) How much is the total of Alan and Ben's share of the gift?
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document.write( "(b) How much did Ben pay towards the gift on the day of shopping? \n" );
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Algebra.Com's Answer #838527 by greenestamps(13208) You can put this solution on YOUR website! \n" ); document.write( "There is nothing missing from the description of the problem; and the \"equally shared\" in the first sentence is NOT inconsistent with the rest of the problem. \n" ); document.write( "On the day of shopping, Collin paid 5/9 as much as Alan and Ben together, and David paid nothing. That means Collin paid 5/14 of the total and Alan and Ben together paid 9/14 of the total. \n" ); document.write( "Let 5x be the amount that Collin paid and 9x be the amount that Alan and Ben together paid. Then the total paid was 14x, making each boy's share 14x/4 = 3.5x. \n" ); document.write( "The $36 that David paid Collin the next day was the excess amount Collin paid above his share, which was 5x-3.5x = 1.5x. So \n" ); document.write( "1.5x = $36 \n" ); document.write( "x = $36/1.5 = $24 \n" ); document.write( "The amount Collin paid was 5x = $120. \n" ); document.write( "The amount Alan and Ben together paid was 9x = $216. \n" ); document.write( "The total amount paid was 14x = $336. \n" ); document.write( "Alan paid $4 more than Ben; simple algebra or some mental arithmetic show that Ben paid $106 and Alan paid $110. \n" ); document.write( "ANSWERS: \n" ); document.write( "a) Since the total was shared equally 4 ways, the total of Alan's and Ben's shares was half of the total of $336, which is $168. \n" ); document.write( "b) On the day of shopping, the amount Ben paid was $106. \n" ); document.write( " \n" ); document.write( " |