841 + 673 - 529 = _____
A859
B985
C598
D895
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A chemist prepares 100 grams of medicine by mixing two ingredients X and Y. The rate of X is ₹1,500 per 100 grams and that of Y is ₹50 per 10 grams. X and Y are mixed in such a way that the cost of the resulting medicine is ₹13 per gram. What is the quantity of X (in grams) in the medicine ?