How much chicory at Rs. 40 a kg should be added to 15 kg of tea at Rs. 100 a kg, so as to make the mixture worth Rs. 65 a kg?
Explanation:
∴ Required ratio of quantity of chicory and tea = 7 : 5
∴ Amount of Chocory / Amount of Tea = 7 / 5
∴ Amount of Chicory = 7/5 × 15 = 21 kg
Hence, option (b).
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