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There are two solutions of sulphuric acid (acid + water) with concentration of 50% and 80% respectively. They are mixed in a certain ratio to get a 62% sulphuric acid solution. This solution is mixed with 6 litres of water to get back 50% solution. How much of the 80% solution has been used in the entire process?

Option 1)
15 litres
Option 2)
12 litres
Option 3)
10 litres
Option 4)
20 litres
Option 5)
None of these

Answers (1)

best_answer

$\frac{3X}{2X}+6=\frac{1}{2} = 3x = 2x+6$

$x = 6$

Quantity of 80 % solution = 6X2 = 12 L

Posted by

rishi.raj

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