Que: A juice manufacturer has 1,800 liters of mango pulp in stock, 30 percent of which is water.....

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Que: A juice manufacturer has 1,800 liters of mango pulp in stock, 30 percent of which is water. If the manufacturer adds another 600 liters of mango pulp of which 30 percent is water, what percent, by volume, of the manufacturer’s mango pulp contains water?

(A) 20%
(B) 25%
(C) 30%
(D) 35%
(E) 40%

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Solution: The resultant percentage will be the weighted average of the percentages of the above two stocks.

=> \(\frac{\left(1800\ \cdot\ 0.3\right)+\left(600\ \cdot\ 0.3\right)}{1800+600}\cdot100\)

=> \(\frac{\left(540\right)+\left(180\right)}{2400}\cdot100\)

=> \(\frac{720}{2400}\cdot100\) => 30%

Therefore, C is the correct answer.

Answer C