In what ratio must a grocer mix two varieties of tea worth Tk. 60 a kg and Tk. 65 a kg so that by selling the mixture at Tk. 20 a kg he may gain 10%?
Solution
Correct Answer: Option B
Selling Price of tea mixture = Taka .68.20 For 10% profit, cost price of the mixture of tea should be Taka .62. Using rule of alligation, Cheaper Value: Taka . 60 Dearer Value: Taka . 65 Mean Value: Taka . 62 Ratio of quantities: (65 - 62) : (62 - 60) = 3 : 2
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