The Hardest (and Easiest) GMAT Math Practice Questions on the Exam

[@juancarloscevallos3899]

It's just mindblowing the clarity that you have when explaining

[@pranayjakkula7783]

Thanks a ton Erika. More such videos will help us in our preparation.

[@MagooshGMAT]

More will be coming! :)

[@vibhorkala5144]

Super helpful, looking forward to more such videos

[@devondevon4366]

9:22 Since the expression a/b + 1 can be expressed as (a+b)/c and since each unknown is one of the numbers 2, 3, or 5, you want the ----------- c/b denominator to be the smallest (2)of the three integers, hence (3 + 5)/2 = 4 . Hence the greatest possible value o expression is 4, answer

[@ayushjain9588]

Can you please make more videos on permutations and combinations.. the differences and how to distinguish the problems with respect to which concept would be used in which case

[@Ephesians3-3412]

Questions that include words like, "arrangement," "display," "rank," or "order" are indicative of a permutation's question. Problems that ask about the number of ways you can combine, or create subgroups signal a combination's question.

[@JJ-zy3zv]

Erika is excellent one of the best experts out there. Her videos are very enjoyable

[@atharvagupta9355]

Hey Erika, Would you recommend us to solve the last problem during the GMAT at all -considering it took almost 3 mins to do it mentally?

[@SaadAldousari]

This is a brilliant video. Thank you Erika!

[@MagooshGMAT]

Glad you found it helpful! :)

[@smimi2333]

I wouldn’t have been able to do the fourth one because I can’t remember how column multiplications work as I do mental calculations

[@yokaparthasarathy3294]

Whatching this video. I know time management is going to be my nemesis.

[@hondini]

Really helpful! Thank you!

[@MagooshGMAT]

You're very welcome! Glad you liked it, and thanks for stopping by :)

[@elmerhuamanpedraza3121]

thank you. you help me a lot. Nive and useful video

[@ishikabansal9031]

Hey there! Would love to see a video of the strategies to tackle the hardest GMAT Algebra questions.

[@devondevon4366]

13:17 answer 17 A A B x B ----------- C B 5 B Only 1x1, 5x5, 6x6 will give you the same digit B B B 1 can be ruled out since 1 would give AAB (and not four digits CB5B), 5 can be also ruled out since 5 x a number 'n' would have to equal 3 (but 5 times a number 'n' equals 0 or 5). Hence B is 6. Need A to be number when multiplied by B (which is 6) will give 2 (either 6x7 or 2x 6). A is 7 hence 7 7 6 x 6- = 4 6 5 6 Hence A+B+C = 17 answer

[@devondevon4366]

15:45 , B cant be 5 since A would have to be a unit digit that when multiplied by 5 = 3, but 5 times any number ends in either 0 or 5, hence A =5 has to be ruled out hence A =6

[@nicoleweigelt3938]

In general it cant be 5 because there is already a 5 under the line

[@devondevon4366]

@@nicoleweigelt3938 Yes, you are correct

[@devondevon4366]

1:15 angle E =45 since angle DAE =40 (parallel line and transversal) given that angle C from ACB =40 (75+65+40=180) hence 180- (40+95)=45 degree answer

[@anaghafarpour9318]

Thank you very much. It was great. I solved all the question correctly before watched your answers.

[@MehakZahra-aNaqvi]

Question that starts after 12:14: How can one assume it's B*B that resulted in 4 digit number, even if it was giving other product something to carry, the 4 digit number might be because of B*A.

[@MagooshGMAT]

In this case the only number we ruled out due to that issue was 1, and that's because it is not possibly to multiply a 3-digit number by 1 and get a 4-digit result. For example, 311 * 1 = 311. That will always be the case, and no numbers will carry over since the highest number, 9, multiplied by 1 is still 9. You won't get a result big enough that it needs carried. Hope that helps!

[@FivThrill]

​@@MagooshGMAT What if c = 0 ? Then we get 3 digit number. I think we have to expect every possibility

[@Bengali-Octane]

helpful thanks.

[@omarzoghayyer5405]

excellent

[@MagooshGMAT]

🙌

[@devondevon4366]

nice questions. Surprisingly, the US GMAT score in 2019 was lower that the world's average.

[@mgerhe3464nte]

not surprising

[@ItachiUchiha-ge6em]

The question starting at 12:22. Is it a confirmed 700 question? It seems to me as if it takes like very much time to come up with the right solution

[@MagooshGMAT]

Hi Itachi, yes, this is a Very Hard question, and our Very Hard questions tend to fall within the 700+ range.

[@devondevon4366]

4:41 what is BC? the answer is 2 , 'statement 2 alone is sufficient to answer the question but statement one alone is not sufficient. one you chose this answer, you cannot choose the other choices since it contradicts the other 4 choices 1. you can't answer this question alone (all degrees) with statement one 2 yes you can answer the question with statement 2 alone since it is 90, 60, 30 degree triangle and in this instance BC=1 since AD=1 and since BC is one-half the length of AC and BC is one-half AC

[@shuxratabdihalilov7302]

Hi,where have got math example of GMAT?Can you say?

[@Mark-qt8fs]

question to someone who has taken the gmat: how comparable in difficulty are these hard questions?

[@DropshippersNightmare]

For the hard arithmetics problem isn't B surely 6? I crossed out 5 because it was a known value in the answer (CB5B) where it would just be shown as B instead of 5. I am new to GMAT, so please correct me if I'm wrong. Thanks!

[@MagooshGMAT]

Good thinking! :D

[@heemoyemeni2220]

I have exam after 1 week how can get touch with you

[@MagooshGMAT]

You can always reach us by using the 'help' button on any Magoosh page, or by writing to us at [e-mail]!

[@lab.wilcox]

Hi, Erika. My answer to the last question is 15. The solution is B=6, A=2, and C=1 (total sum of 15). It's different from the answer you got.

[@punitmishra6560]

Your set of values is incorrect. You can the try multiplication to find out. Correct ans is 17.

[@dilemmit]

Is GMAT that easy or these are just but simple questions?

[@sajidibnhasan5652]

Sorry, But I did not understand that why the number 5 and 6 was choosen and then only 6 for the B

[@MagooshGMAT]

Hi Sajid! Erika showed us that for the problem we had BxB= a number that ends in B. So, she was going through the options quickly to show which ones would give us that result. Since 5x5=25, that is one option (25 ends in 5). And since 6x6=36, that is another option (36 ends in 6). Then, Erika began by plugging the 5 in for B in the problem. However, when she saw that 5A would have to equal a number that ends in 3, she could tell it wouldn't work out because no integer multiplied by 5 ends in 3. So, that's how she determined B = 6. Hope this helps a bit! Happy studying to you! :D

[@Bhanusivakrishna27]

genius

[@kashxdeep]

question no. 2 was solved in less than two minutes.

[@MagooshGMAT]

The question "if BC=BD..." is solved from around 4 minutes to minute 9 in the video. :-)

[@anujshitut2838]

I'm 17 and i got the hard arithmetic one in like 3 min. GMAT dosent seem that tough. I'm from India btw

[@MagooshGMAT]

Well done, Anuj! 😃

[@bolu101]

come back in 10 years 😔

[@PickAShoe1]

But do you get any bches? That's what I thought, it's already over for you lil bro 🥱

[@Analyst2019pro]

Okay anju did you score high?

[@pritamroy3338]

As a competent math student, I was able to answer all the questions correctly in no time. Are GMAT math problems really at that easy of a level?

[@MagooshGMAT]

The Quant section tests different concepts, try taking a diagnostic quiz or test to get a better sense! We have a free diagnostic on our GMAT blog.

[@maheedharyaleti5606]

It needs to be solved under 2 minutes. Every one can solve untimely manner.

[@DD-ky9xi]

These are very easy compared to cat

[@aloofquail1119]

you really call that hard ?

[@TravellerNg]

You want a cookie or a medal?

[@Analyst2019pro]

Okay tough guy