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Published on January 10th, 2011 In category Maths

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# Problem solving trick for liquid mixtures

Many time in the competive exams the questions are asked based on the mixtures of the liquid. This post gives as easy way of solving such problems. Sample questions asked are as follows:

1. A milk can of 20 lts capacity is filled with mixture of 15 ltrs milk & water, every time milkman removes 1 ltr  mixture he adds 1 ltr water, how much milk would be there after 5 operations

2. A solution has 70% chemical, how much water to be added to 5lts solution to make it 50% concentration

3. Article of 2 vairties with different unit prices are mixed and one wants to find out the unit price of assortments

There are similar kind problems based on proportions and mixture, lets us see how you can solve these kind of problems very easily and use the formula to solve the problems.

The problems of 1st type as mentioned can be solved with following formula:

It better to gain experience by solving the quiz as given over here, this also explains the concept and provides the answers as well.