A mixture contains 45 ml water and rest ‘x’ ml milk.

Q: Answer-A mixture contains 45 ml water and rest ‘x’ ml milk. When 0.3x ml of water is added, the water becom...

According to the question,Quantity of water after addition of 0.3x ml water 45 0.3xTotal quantity of the mixture 45 0.3x x 45 1.3xTherefore,3745 1.3x 45 0.3xOr, 135 3.9x 315 2.1xOr, 1.8x 180Or, x 100

When 0.3x ml of water is added, the water becomes 3/7th of the mixture. Find the value of ‘x’.

A 80 Correct Answer Incorrect Answer

B 120 Correct Answer Incorrect Answer

C 150 Correct Answer Incorrect Answer

D 100 Correct Answer Incorrect Answer

Solution

According to the question,
Quantity of water after addition of 0.3x ml water = (45 + 0.3x)
Total quantity of the mixture = 45 + 0.3x + x = (45 + 1.3x)
Therefore,
(3/7)(45 + 1.3x) = (45 + 0.3x)
Or, 135 + 3.9x = 315 + 2.1x
Or, 1.8x = 180
Or, x = 100

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Relevant for Exams:

IB ACIO Executive

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