This is designed for students preparing for the GRE QUANT section. It explains problems on mixtures and solutions . A helpful technique is illustrated wherein we divide the problems into 2 types. In one type, 2 solutions are mixed and the other type deals with only one solution. Problems are illustrated in a step by step method. For more videos, consider subscribing to my channel . Visit my page https://www.mathmadeeasy.co/about-1 Visit my playlist on GRE QUANT http://lnnk.in/@gre-quant

1. Problems on Mixtures and
Solutions
Gre quant/GMAT quant

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4.  This presentation deals with solving problems on mixtures and solutions.
 The technique of reducing it to a simple algebraic problem is illustrated.

5. Question 1
A is 20% water and 80% milk. B is 5 % water and 95% milk. What ratio should they be
combined to get a mixture which is 10% water.

6. We want a mixture which is 10 % water

8. Question 2
2 brands of detergent are to be combined. Detergent A contains 20% bleach and 80%
soap while detergent B contains 45% bleach and 55% soap. If the combined mixture is
35% bleach what is the % of A in the final mixture?

9. Combined mixture is 35 % bleach

11. Question 3
How many litres of 20% alcohol solution should be added to 40 litres of a 50% alcohol
solution to make a 30% alcohol solution.

12. The resultant solution should be30% alcohol

14. Question 4
A 50 ml aftershave lotion at 30% alcohol is mixed with 30ml of pure water. What is the
% of alcohol in the new solution.

15. The original solution has 30 % alcohol

17. Question 5
200 litres mixture is 90% water and 10% salts. How much water should be added to
get a mixture which is 5% salts.

19. The new mixture has 5 % salts

20. Question 6
A mixture of 12 gms of vinegar and oil is 40% vinegar. How many gms of oil must be
added to the mixture to produce a mixture that is 25% vinegar

22. The new mixture is 25 % vinegar

23.  I hope this was useful to students trying to solve problems involving mixtures.
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