document.write( "Question 923626: A man bought some oranges at the rate of 3
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document.write( "oranges for one rupee and equal number of oranges
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document.write( "at the rate of 2 oranges for one rupee. What is his
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document.write( "profit, if he sells 2 oranges for one rupee. \n" );
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Algebra.Com's Answer #560182 by Theo(13342)![]() ![]() You can put this solution on YOUR website! he buys a batch of oranges at 3 oranges per rupee. \n" ); document.write( "his cost per orange is equal to 1/3 of a rupee.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "he buys another batch of oranges at 2 oranges per rupee. \n" ); document.write( "his cost per orange is equal to 1/2 of a rupee.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "since he buys an equal amount of each, then his average cost per orange for both batches is equal to (1/3 + 1/2) / 2 which is equal to 5/6 divided by 2 which is equal to 5/12 of a rupee.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "his cost for 2 oranges is therefore equal to 10/12 of a rupee which can be simplified to 5/6 of a rupee.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if he sells 2 oranges for 1 rupee, then his profit is 1 - 5/6 = 1/6 of a rupee.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "we can test this to see if it makes sense.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "assume he buys 2 batches of 18 oranges apiece.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "one batch is bought at 3 oranges per rupee for a total cost of 6 rupees. \n" ); document.write( "the other batch is bought at 2 oranges per rupee for a total cost of 9 rupees.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "his total cost is equal to 6 + 9 = 15 rupees.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "his cost per orange is equal to 15 / 36 = 5/12 of a rupee per orange.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "he sells 2.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "he makes 1 rupee. \n" ); document.write( "his cost is 10/12 of a rupee which simplifies to 5/6 of a rupee. \n" ); document.write( "his profit is 1 rupee minus 5/6 of a rupee = 1/6 of a rupee.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solution is confirmed as good.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |