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06 Mar 2020, 11:56
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Just do this problem the way you'd do it in your kitchen at home.
If you were actually going to make orange juice, there's no way you would have any difficulty with this problem at all -- it's thinking of it as "academic" that causes all the trouble.
1 can of concentrate is to be mixed with 3 cans of water to make orange juice.
^^ this means that every 1 can of concentrate + 3 cans of water makes 4 cans of orange juice. So, whatever amount of concentrate you started with, you'll have 4 times that much juice. (Just think about ilterally pouring two liquids together.)
You want 1200 ounces of orange juice.
So, that's 1200/4 = 300 ounces of concentrate.
There are 12 ounces of concentrate in a can, so that's 300/12 = 25 cans.
Posted from my mobile device
If you were actually going to make orange juice, there's no way you would have any difficulty with this problem at all -- it's thinking of it as "academic" that causes all the trouble.
1 can of concentrate is to be mixed with 3 cans of water to make orange juice.
^^ this means that every 1 can of concentrate + 3 cans of water makes 4 cans of orange juice. So, whatever amount of concentrate you started with, you'll have 4 times that much juice. (Just think about ilterally pouring two liquids together.)
You want 1200 ounces of orange juice.
So, that's 1200/4 = 300 ounces of concentrate.
There are 12 ounces of concentrate in a can, so that's 300/12 = 25 cans.
Posted from my mobile device
10 Jun 2020, 10:02
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I am just so cross with this question. How am I supposed to know that the concentrate is liquid but not some sort of powder like that of coke and fanta???
10 Jun 2020, 12:54
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tedwang
Hi tedwang,
This prompts expects us to infer a couple of facts without explicitly stating them:
1) One can of WATER is 12 ounces of water.
2) "12 ounce cans" of concentrate refers to ounces of 'liquid concentrate.'
Without those two assumptions, this question becomes impossible to answer... but GMAT questions on Test Day are always carefully written. Going forward, as you continue to work on PS questions, if you find yourself thinking "there's no way to answer this question" then either you're working on a really poorly-worded question OR you're misinterpreting some aspect of the question. In those situations, you might think in terms of "what if...." (here, that would be "what if... the concentrate is liquid? What would the answer be then?).
GMAT assassins aren't born, they're made,
Rich
