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91. How many kg of salt costing Rs. 28 per kg must be mixed with 39.6 kg of salt costing Rs. 16 per kg, so that selling the mixture at Rs. 29.90, there is a gain of 15%.
No explanation ¯\_(ツ)_/¯
92. In what ratio should sugar costing Rs. 40 per kg he mixed with sugar costing Rs. 18 per kg. So as to earn a profit of 20% by selling the mixture at Rs. 54 per kg?
No explanation ¯\_(ツ)_/¯
93. A and B are solutions of acid and water. The ratios of water and acid in A and B are 4 : 5 and 1 : 2 respectively. If x litres of A is mixed with y litres of B, then ratio of water and acid in the mixture becomes 8 : 13. What is x : y?
No explanation ¯\_(ツ)_/¯
94. A drink of chocolate and milk contains 8% pure chocolate by volume. If 10 litres of pure milk are added to 50 litres of this drink, the percentage of chocolate in the new drink is:
No explanation ¯\_(ツ)_/¯
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