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A mixture contains A and B in the ratio 5 : 9. 14 litres of this mixture is taken out and 14 litres of B is poured in. Now the ratio of A to B becomes 2 : 5.
Find the amount of B originally present in the mixture.

A.25 litres
B.45 litres
C.35 litres
D.40 litres
Answer and Feedback
Answer:B
Feedback:Total = 5x+9x+14 = 14x+14
So 5x/9x+14 = 2/5
Solve, x = 4
So total = 14*4 + 14 = 70 litres
So B = 9/(5+9) * 70 = 45

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Practice Mixtures and Alligations Online Test 5 | Englishfreetest.com

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