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Wednesday, August 24, 2022

When one litre of water is added to a mixture of acid and water, the new mixture contains 20% acid. When one litre of acid is added to the new mixture, then the resulting mixture contains 3313% acid. The percentage of acid in the original mixture was

When one litre of water is added to a mixture of acid and water, the new mixture contains 20% acid. When one litre of acid is added to the new mixture, then the resulting mixture contains 3313% acid. The percentage of acid in the original mixture was
A20 %
B22 %
C24 %
D25 %

Correct answer is: 25 %

Explanation:

If there be 1 litre of acid in 4 litres of mixture, then in case 1,
Percentage of acid

=14+1×100=20%

Case ll.
Percentage of acid

=26×100=1003=3313%

Therefore, Percentage of acid in original 1 mixture = =14×100

=25%

 

Nithin
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