SOLUTION: A man sells two articles each for the same price of #640. He earns 20% profit on the first and 40% profit on the second .find the overall percent profit

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Question 1121815: A man sells two articles each for the same price of #640. He earns 20% profit on the first and 40% profit on the second .find the overall percent profit
Found 2 solutions by josmiceli, MathTherapy:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+.2%2A640+=+128+
+.4%2A640+=+256+
Total profit = +128+%2B+256+=+384+
————————
Overall % profit:
+384%2F%28+2%2A640+%29+
+384%2F1280+=+.3+
30% overall profit

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
A man sells two articles each for the same price of #640. He earns 20% profit on the first and 40% profit on the second .find the overall percent profit
If he sells the lower-profit item for $640, and made a 20% profit, then he paid: 640%2F1.2 for that item.

If he sells the higher-profit item for $640, and made a 40% profit, then he paid: 640%2F1.4 for that item.

We then get total COST as: matrix%281%2C3%2C+640%2F1.2%2C+%22%2B%22%2C+640%2F1.4%29

Therefore, his OVERALL profit percent =