A vessel is filled with 120 litres of Chemical solution Acid ldquo A rdquo Some quantity of Acid ldq...........

Quant (SSC) Mixture and Alligation

A vessel is filled with 120 litres of Chemical solution, Acid “A”. Some quantity of Acid “A” was taken out and replaced with 23 litres of Acid “B” in such a way that the resultant ratio of the quantity of Acid “A” to Acid “B” is 4:1. Again 23 litres of the mixture was taken out and replaced with 28 litre of Acid “B”. What is the ratio of the Acid “A” to Acid “B” in the resultant mixture?

43 : 29

46 : 23

47 : 21

46 : 29

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Explanation:

In 23 litre mixture, Quantity of Acid “B” = 23 * 1/5 = 4.6 litre
Acid “A” in the mixture = 23 – 4.6 = 18.4 litre
120 – x / 23 = 4 / 1
x = 28
Ratio = 92-18.4 : 18.4 + 28
Ratio = 46 : 29