In what ratio a vendor should mix rice at Rs.60 per kg with rice at Rs. 68 per kg so that the final rice mixture must be of worth Rs. 63 per kg?
Explanation: By rule of alligation,
Cost of 1 kg of 1st kind rice
Cost of 1 kg of 2nd kind rice
Required Ratio = 7.5 : 2.5 = 3 : 1
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