Carcass wrote:
A juice manufacturer has 1,200 liters of mango pulp in stock, 25 percent of which is water. If the manufacturer adds another 400 liters of mango pulp of which 20 percent is water, what percent, by volume, of the manufacturer’s mango pulp contains water?
(A) 21.50%
(B) 23.75%
(C) 33.33%
(D) 35.00%
(E) 37.50%
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GRE Tips and Tricks - UPDATED 11/20/2021 A juice manufacturer has 1,200 liters of mango pulp in stock, 25 percent of which is water. 25% of 1,200 = 300
So, the 1,200 liters of mango pulp contains
300 liters of water.
If the manufacturer adds another 400 liters of mango pulp of which 20 percent is water, ...20% of 400 = 80
So, the 400 liters of mango pulp contains
80 liters of water.
...what percent, by volume, of the manufacturer’s mango pulp contains water?1,200 + 400 = 1,600.
So, we now have 1,600 liters of mango pulp.
300 +
80 =
380 So, there are
380 liters of water in the 1,600 liters of mango pulp.
380/1600 = 38/160 = 19/80 = 23.75%
Answer: B