An dealer buys an article for $ 7,sells it for $ 8,buys it back for $ 9 and sells it again for $ 10.What is the profit or loss he gets ?
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At first his profit was$(8-7)=$1. Second time his profit was $(10-9)=$1.The total profit was
$ (1+1)=$ 2.
$ (1+1)=$ 2.
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