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When one litre of water is added to a mi...

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 33 `1/3`% acid. The percentage of acid in the original mixture was

A

0.2

B

0.22

C

0.24

D

0.25

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The correct Answer is:
D
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