Latest Maths Olympiad Aptitude Question SOLUTION: How many liters of pure water should be evaporated(removed) from 160 liters of 12% saline(salt) solution so that the solution that remains is a 20% solution?

• Placement Papers
• /
• Maths Olympiad
• /
• Blood Relations

Maths Olympiad Question Papers:

(#M40034345) MATHS OLYMPIAD question Keep an EYE

How many liters of pure water should be evaporated(removed) from 160 liters of 12% saline(salt) solution so that the solution that remains is a 20% solution?

Asked In Maths Olympiad (10 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (0)   (0) Submit Your Solution Blood Relations

Read Solution (1) :

Ann Theressa  (10 years ago)

64 liters

Given ---> In 160 liters 12% is salt solution
ie, 160*12/100 = 19.2 liters of salt

Let x be the solution that contains 20% salt after evaporation.
so amount of salt = 20/100 *x

Since the salt content in solution does not change
20/100*x = 19.2
x = 96 liters

ie remaining solution is 96 liters
Therefore liters of pure water evaporated = 160 - 96 = 64 liters

Is this solution Helpfull? Yes (1) | No   

Please Login to Read Solution.