Question

A mixture contains ‘x’% milk. 30% of this mixture is taken out and is replaced with same quantity of water. This procedure is repeated two more times. If the resultant mixture contains 20.58% milk, then find the value of ‘x’.

A 80 Correct Answer Incorrect Answer
B 60 Correct Answer Incorrect Answer
C 50 Correct Answer Incorrect Answer
D 70 Correct Answer Incorrect Answer

Solution

According to question, => 20.58 = x × (7/10) × (7/10) × (7/10) => x = 60

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