How to Avoid Screwing Yourself on Data Sufficiency: GMAT Ninja Data Insights EP5

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9 ай бұрын

This is the last episode of our full-coverage series on Data Insights section of the new GMAT Focus Edition with GMAT Ninja. In this session, we will learn how to handle Data Sufficiency questions. These question types contain a mathematical problem and two separate statements and our task is to carefully evaluate the information provided in two statements to determine if it is sufficient to solve the given problem.
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EP1 Graphical Interpretation • Graphical Interpretati...
EP2 Two-Part Analysis • Two-Part Analysis: Whe...
EP3 Table Analysis • Table Analysis: Embrac...
EP4 Multi-Source Reasoning • Multi-Source Reasoning...
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Пікірлер: 21

@Voivod74 7 ай бұрын

When the best tutor out there has thought about you just reading the subject of a question, it fills your heart! ❤

@gmatclub 7 ай бұрын

So true!

@abdullatifal-rabah6965 2 ай бұрын

17:00 I think statement 1 is also sufficient since question says that the profit increases for a certain book, means the next 2200 books will sale more than 40K, which gives proof that 4400 books exceeds 80k profit.

@bluegeraniol2626 5 ай бұрын

Your videos have been super helpful! Thank you

@gmatclub 5 ай бұрын

We're so glad. Do LIKE and SUBSCRIBE!

@Muhtasim-y8d 23 күн бұрын

For the second question (i.e. the tacos question) , can we not isolate a and input a value of c that would make a an integer?

@nehashashidhar462 9 ай бұрын

I cant really get over last question.

@swethachowdary6203 8 ай бұрын

Hi Charles. In Data suffiency would be great if you can help me to solve the below question: Q. Lee has three separate savings accounts.What is the total amount of money in the three accounts? 1. The total amount of money in any two of the accounts is $8000 2.Atleast one of the accounts contain $4000. It says answer is A(statement 1 alone is sufficent). Can you please throw some light on this

@gmatclub 8 ай бұрын

What is the source of this question? posted the question here for an expert to solve it on GMAT Club: gmatclub.com/forum/lee-has-three-separate-savings-accounts-what-is-the-total-amount-of-mo-420503.html.

@abhrajitghosh1123 9 ай бұрын

Hi Charles, regarding the last question, just wanted to clarify where I went wrong. It asks for the avg of the 2 largest salaries, so my question is why would we need to assume if all the 5 salaries are same ? If all the salaries are same, then there’s no point of 2 largest annual salaries. Also let’s say that the 2 largest salaries are 120k each, then the other smaller ones have to be less than 120k which would make the avg of the 5 less than 120k. Please correct me, I’m not able to understand this.

@nehashashidhar462 9 ай бұрын

Hey, I also got the same doubt. But , I think that's the way of tricking us. Cuz in question they have clearly mentioned largest salaries- so we end up thinking a>b>c>d>e or something like this. We wouldn't know if a=b=c=d=e. Though all are equal , any two will be consider as the largest amount. (This was the only way I could convince myself. sorry if thats illogical :) )

@eastsidelakerfan 7 ай бұрын

@@nehashashidhar462 Sure, but it's a really odd and awkward phrasing. Super misleading, and not in a useful way. It's totally a "gotcha" imo No native English speaker would phrase it this way. It is very unnatural and strange.

@eastsidelakerfan 7 ай бұрын

What the hell is the deal with calling them "the three smallest integers" and not "the three smallest salaries?" I interpreted this initially to mean the single integer that was part of the bigger salary. For example, if one salary was $85,295, the smallest integer is 2.

@sunnysideup128 7 ай бұрын

100th like!☺

@gmatclub 7 ай бұрын

Legend! :-)

@user-iy2sw5qj2z 9 ай бұрын

Hey! About the last question- 1) It says two 'largest' salaries. and 2) says two 'smallest' salaries. If they were all the same amount, how would there be largest or smallest among them? Not clear about this! Kindly help

@ambecksfulful 9 ай бұрын

As Charles previously stated, we have to separate statement 1 & 2, so we don’t mix the way we think about the relationship between question and both statements. This might be help if we arrange-> data: (a)there are 5 salaries; & (b) the average of the 3 smallest salaries is less than 120k->Q: is the average of the 2 biggest salaries bigger than 120k? --> if we ONLY diggest information from (a) & (b)-> we can’t answer the question, can we?

@eastsidelakerfan 7 ай бұрын

@@ambecksfulful This does not answer the question. "The three smallest" by itself is really confusing and misleading if all 3 are equal. Also, "the two biggest" by itself is really confusing and misleading if all 3 are equal.