A person sold two articles - article A at 40% profit and article B at 20% loss. He made a profit of Rs. 18 in the whole transaction. If the cost price of article A is Rs. 140 less than that of article B, then what is the cost price of article B?
1
Rs. 380
2
Rs. 280
3
Rs. 340
4
Rs. 370
5
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