A chemist prepared 50 grams of a medicine by mixing two ingredients P and 'Q, Rate of 'P' is ₹150 per 10 gm and that of 'Q' is ₹ 500 per 100 gm. 'P' and 'Q are mixed in such a way that the cost of the resulting medicine is ₹12 per gm. What is the quantity of 'P' (in grams) in the medicine?
Solution-
P Q
15 5
12
7 3
ATQ-
(7+3) =10=50
1=5
Quantity of P =7×5=35 gram
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