## Filters

Q&A - Ask Doubts and Get Answers
Q

# There are two solutions of sulphuric acid (ac

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

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