Strategies to use for Two-Part Analysis Questions

Question

I'm finding it hard to get two-part analysis questions right. They are often very intricate, and interconnected.

Are you aware of any effective strategies I can take to make it easier to answer these questions in time?

chetan2u · Answer

Hi,

There are certain types of TPA that one can see in the DI. Many more type are likely to be seen as we move ahead. However, most of them relate to the math that we deal with in the quant section. So refreshing your quant basics is very important. Also, as the name suggests, it is more logical and tricky, so paying minute attention is of utmost importance.
The Verbal questions very often test the concept of 'If then', may not be straight forward.

MartyMurray · Answer

What types of Two-Part Analysis questions are you finding challenging?

saynchalk · Answer

Hi Marty,

Here are a few examples of the questions I came across, that I got wrong. I am unable to assimilate all the info mentally within 2 minutes, let alone attempt the questions themselves.

Any thoughts on how I can do these faster / accurately?

Edit: looks like I pasted one of the questions twice by mistake. I have edited and added the pic I meant to add.

saynchalk · Answer

Hi Chetan,

Lots of info to comprehend within 2 minutes, and also to answer. I've found that in DI, they will throw in one huge question that takes up a lot of time, then the following questions will require me to attempt them faster. Any thoughts on the approach I should take to do these faster? MSR usually takes me some time, but I often get them right. With TPA, however, I am very lost.

Edit: I've added some pictures to my other reply to MartyMurray, maybe you can check them out too? Thanks!

chetan2u · Answer

The error could be done in the last line, one may read too much in that. 
Relation in average per line will be same as in average per 100 words. We are to find value of each group and combined value for any set of lines, it could be one, 100 or 200.

As values have been given as 5x and 2y for individual groups for 100 lines, let us find average errors for combined group for 100 lines. It is given three times of 2y or 6y.

Question is further made easier as equal number of people from each group are taken. 
So let us take one from each.

Thus  5x+2y=2*6y….10y=5x….y=2x

Look for values where one is twice of other. Only 2 and 4 fit in. We also know y is the larger one. Thus y=4 and x=2

chetan2u · Answer

For positive values of n, T, is defined such that  T_{n+2} - 2T_n^2 - T_{n+1}= 0 , also given is  T_5= 2 . Select the values of  T_4 , &  T_7  in the table such that they are jointly compatible with these conditions.

The first thing that comes to my mind is that the expression talks of three consecutive terms, but we are given T4, T5, T7.

Let us remove T6 and get T7.

T_{6} - 2T_4^2 - T_{5}= 0 
Also,  T_{7} - 2T_5^2 - T_{6}= 0 
Add the two =>  T_{7} - 2T_4^2 - T_{5} - 2T_5^2 = 0 
  T_{7} - 2T_4^2 - 2 - 2*2 ^2= 0 
 T_{7} = 2T_4^2 +10 
So T7 is at least 10 more. 
T7 as 12 gives T4 as 1.

GyanDhan_Finance · Answer

Hi,

Below are some of the strategies that you can use - 
 
  Break Down the Question : Simplify the problem by dividing it into manageable parts, focusing on solving one part at a time. 
  Use Process of Elimination : Eliminate clearly incorrect answers to narrow down your options, making it easier to identify the correct ones. 
  Practice Time Management : Work on improving your speed and efficiency under timed conditions to better manage your time during the exam. 
  Stay Calm and Confident : Maintain your composure and remind yourself of your preparation to tackle each question with confidence.  
In your journey to mastering GMAT two-part analysis questions, remember that practice and a strategic approach are key. For personalized guidance and more tailored strategies, consider reaching out to  GyanDhan . Their expert advisors can help streamline your preparation process and boost your confidence, bringing you one step closer to achieving your desired GMAT score.

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