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প্রশ্ন:
The ratio of the cost of two articles is 7:3 . The first one was sold at a loss of 20% and the second one was sold at a gain of 40% What is the overall percentage of gain/loss?
The ratio of the cost of two articles is 7:3 . The first one was sold at a loss of 20% and the second one was sold at a gain of 40% What is the overall percentage of gain/loss?