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In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg?

In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg? Correct Answer 7 : 3

By the rule of alligation, we have:
Alligation mcq solution image
∴ Required rate = 3.50 : 1.50 = 7 : 3

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