The total cost of 3 pens, 4 pencils and 2 erasers is ₹ 43. The total cost remains to be the same even if the quantities are changed to 2 pens, 3 pencils and 4 erasers, as their cost per unit is the same in both cases. With the same unit costs, the total cost of 4 pens, 2 pencils and 3 erasers is ₹ 49. Then, what will be the total cost of one pen, one pencil and one eraser?
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