document.write( "Question 818240: [ abdul purchases Rs.50 worth of lemons at 3 lemons for 1 rupee, and sells them
\n" ); document.write( "at 5 lemons for Rs.2. what is his total gain or loss? find also the percentage gain or loss. ]
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Algebra.Com's Answer #492586 by TimothyLamb(4379)\"\" \"About 
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buy price:
\n" ); document.write( "b = 1 rupee / 3 lemons = 1/3 rupee/lemon
\n" ); document.write( "---
\n" ); document.write( "sell price:
\n" ); document.write( "s = 2 rupee / 5 lemons = 2/5 rupee/lemon
\n" ); document.write( "---
\n" ); document.write( "lemons bought:
\n" ); document.write( "L = 50 rupee / b
\n" ); document.write( "L = 50 rupee / ( 1/3 rupee/lemon )
\n" ); document.write( "L = 150 lemons
\n" ); document.write( "---
\n" ); document.write( "profit eqn:
\n" ); document.write( "p = L(s - b)
\n" ); document.write( "---
\n" ); document.write( "p = L(s - b)
\n" ); document.write( "p = 150(2/5 - 1/3)
\n" ); document.write( "p = 150(6/15 - 5/15)
\n" ); document.write( "p = 150(1/15)
\n" ); document.write( "p = (150 lemons) * (1/15 rupee/lemon)
\n" ); document.write( "---
\n" ); document.write( "profit = 10 rupees
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