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GmatFear
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GmatFear
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Could you please provide the full problem so I can understand it better?

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GmatFear
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Could you please provide the full problem so I can understand it better?

Posted from my mobile device

This is what the directions say,

Translate and solve the following word problem.

One dose of secret formula is made from 1/6 ounce of Substance X and 2/3 ounce of Substance Z. How many doses are in a 10-ounce vial of secret formula?

Here is what the solution shows... \(Onedose = \frac{1}{6} oz. + \frac{2}{3} oz. = \frac{1}{6} oz. + \frac{4}{6} oz. = \frac{5}{6} oz.\)

\(\frac{10}{5/6} = 10 ( \frac{6}{5})=2(6)=12 doses\)

So I'm not sure if I over analyzed this problem or what the mistake was??? Hopefully these problems become easier with repetition...
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I looked at it this way.

You need to find how many doses in 10 ounces.

Well how many ounces are in 1 dose?

1 dose is made up of 1/6 ounces of something and 2/3 ounces of something else. In total - one dose equals 1/6 + 2/3 = 5/6 ounces.

Now you have found 5/6 ounces in 1 dose.

So how many doses in 10 ounces? this is \(10/ \frac{5}{6}\)

= 12

The key is to remember we only care about the quantity not the mixture... this is not a mixture problem.

Hope that helps :)
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LighthousePrep
Could you please provide the full problem so I can understand it better?



= 5/6*10 = Posted from my mobile device

This is what the directions say,

Translate and solve the following word problem.

One dose of secret formula is made from 1/6 ounce of Substance X and 2/3 ounce of Substance Z. How many doses are in a 10-ounce vial of secret formula?

Here is what the solution shows... \(Onedose = \frac{1}{6} oz. + \frac{2}{3} oz. = \frac{1}{6} oz. + \frac{4}{6} oz. = \frac{5}{6} oz.\)

\(\frac{10}{5/6} = 10 ( \frac{6}{5})=2(6)=12 doses\)

So I'm not sure if I over analyzed this problem or what the mistake was??? Hopefully these problems become easier with repetition...
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GmatFear

One approach that helps in word problems is to visualize the specific information that is given to you and then translate it accordingly. In some problems putting an algebraic structure helps whereas in other approaching it conceptually works better. The ability to discern the best approach comes with practice.

I would recommend you to start with the easy GMAT word problems that are taken from official GMAT tests. The GMAT has a very specific preference when it comes to phrasing questions, and this is what you need to get used to. Unfortunately, third party problem writers are not able to capture this accurately, at least in my opinion.

So the question is where to find easy official GMAT problems. A good place to start would be the current official GMAT guide. I would say focus on the word problems that are in the first half of both problem solving and data sufficiency section. Another good source of easy word problems is Official Guide GMAT 10th edition discussed here: og10-ds-questions-and-solutions-185657.html

To summarize I am recommending starting with the easier word problems, building up the necessary GMAT style verbiage and then moving to the more challenging problems.

Cheers,
Dabral



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