Answers

2014-04-17T19:59:45+05:30
25 % of the fist one and then 12.5%of the second one.
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2014-04-19T20:20:41+05:30
Take 6 litres of the 50% solution and 4 litres of the 25% solution, You will get 10 litres of 40% solution.
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