SOLUTION: A guys sold 2 watch for $240.00. 1st watch sold made 20% profit margin and 2nd watch was sold at 20% lost. How much dollar did the seller made (profit or lost)?

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: A guys sold 2 watch for $240.00. 1st watch sold made 20% profit margin and 2nd watch was sold at 20% lost. How much dollar did the seller made (profit or lost)?      Log On

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Question 760463: A guys sold 2 watch for $240.00. 1st watch sold made 20% profit margin and 2nd watch was sold at 20% lost. How much dollar did the seller made (profit or lost)?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = the selling price of 1st watch
Let +y+ = the selling price of the 2nd watch
I'll say he makes a profit, +P+
+P+=+.2x+-+.2y+
+x+%2B+y+=+240+
---------------
+y+=+240+-+x+
+P+=+.2x+-+.2%2A%28+240+-+x+%29+
+P+=+.2x+-+48+%2B+.2x+
+P+=+.4x+-+48+
---------------
If the profit is zero, the +x+=+120+
If +x+=+240+ ( +y+=+0+ )
+P+=+96+-+48+
+P+=+48+, which is 20% of 240