Question

A dishonest trader defrauds 20% in buying and 20% in selling. what percent does he gain ?​

Answer 1

Answer:

He extent 10% in buying that is 10g on buying and 10% seling in good that he sells 91g instead 100g.

So,gain=19

%gain=(19*100) /90=21g(approx.)

Explanation:

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