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In what ratio must a grocer mix two varieties of pulses costing Rs. 20 and Rs. 25 per kg respectively so as to get a mixture worth Rs. 21 per kg?

In what ratio must a grocer mix two varieties of pulses costing Rs. 20 and Rs. 25 per kg respectively so as to get a mixture worth Rs. 21 per kg? Correct Answer 4 : 1

From the given data,

By the rule of alligation,

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∴ Required ratio = 4 : 1

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