The quantity of 25% saline solution is 1.5 liters.
According to the statement
we have to find that the how many liters of the 25% saline solution is needed to make a 15% saline solution.
So, For this purpose, we know that the
Saline solution is a mixture of sodium chloride and water. It has a number of uses in medicine including cleaning wounds, removal and storage of contact lenses, and help with dry eyes.
And from the given information:
Let The quantity of 25% saline solution = x liters
The quantity of 10% saline solution = 3 liters
The quantity of 15% saline solution = ( x + 3 ) liters
So, According to question
25% of x + 10% of 3 + 15% of ( x + 3 )
then
after removal the percentage by taking 100 as a common and cancel on the both side,
The equation become
25 x + 30 = 15 ( x + 3 )
25 x + 30 = 15 x + 45
25 x - 15 x = 45 - 30
10 x = 15
then x become
x = 15/10
x = 1.5
So, The quantity of 25% saline solution is 1.5 liters.
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