How much rice of ₹4 per kg should be mixed to 15 kg of rice of ₹10 per kg, so as to make a mixture worth ₹6.50 per kg?
21 kg
By using the alligation method, we find that 21 kg of rice at ₹4 per kg should be mixed with 15 kg of rice at ₹10 per kg to make a mixture worth ₹6.50 per kg.
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