Mixtures and Allegations Practice Test 1

Question : 18 of 40

Marks: +1, -0

A vessel contains 60 kg of pure ghee. A seller replaces pure ghee with refined oil every time he sells out 6 kg of ghee. After replacing the ghee with refined oil for the three time, the total amount of pure ghee in the mixture is:

52.36 kg
41.11 kg
43.74 kg
37.14 kg
39.09 kg

Validate

Solution:

Let x quality of pure ghee is left in the mixture.

x=60(1-6/60)^3

x=60×9/10×9/10×9/10

x=43.74

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