Alcohol Solution Replacement

XAT 2012 · QADI · Easy · Mixtures and Alligations

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Ram prepares solutions of alcohol in water according to customers' needs. This morning Ram has prepared 27 litres of a 12% alcohol solution and kept it ready in a 27 litre delivery container to be shipped to the customer. Just before delivery, he finds out that the customer had asked for 27 litres of 21% alcohol solution. To prepare what the customer wants, Ram replaces a portion of 12% solution by 39% solution. How many litres of 12% solution are replaced?

  1. A.

    5

  2. B.

    9

  3. C.

    10

  4. D.

    12

  5. E.

    15

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