QA – Placement Quizzes | Mixtures and Alligation | Question 6

There are two drums of vanaspati gee. One of them contains 25% of oil (and rest 75% gee) and the another contains 50% oil (and rest 50% gee). How much vanaspati gee (approx) should one mix from each of the drum so as to get twelve litres of vanaspati gee such that the ratio of gee to oil is 5 : 2?
(A) 6, 8
(B) 7, 7
(C) 12, 2
(D) 10, 4


Answer: (C)

Explanation: Quantity of Ghee in 1st Drum = 75%

Quantity of Ghee in 2nd Drum = 50%

Total quantity of Ghee required in the final mixture = 14 liters

Ratio of Ghee to Oil in the final mixture = 5 : 2 ( i-e 500/7 % Ghee )

By Alligation Rule :

So, we have to mix Ghee from 1st and 2nd Drum in the ratio of 6 : 1

Since total quantity of Ghee in the final mixture is 14 liters.

So, Ghee to be mixed from 1st Drum = 6/7*14 = 12 liters.

And Ghee to be mixed from 2nd Drum = 1/7*14 = 2 liters.

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