Management Aptitude Test Feb 2012 Paper

Question : 87 of 200

Marks: +1, -0

What amounts (in litres) of 90% and 97% pure acid solutions are mixed to obtain

21\; L

of 95% pure acid solution ?

Solution:

(1)

∴ Amounts of the solutions I and II are in the ratio 2 : 1 .
∴ Amount of the solutions I and II are

2/7

x 21 = 6 L and

5/7

x 21 = 15 L, respectively.

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