Factorials Made Easy - Advanced GMAT Number Properties

Struggling with factorials on the GMAT? The sample question in this video and the tips I provide will teach you core number properties concepts that will enable you to solve similar factorial questions with ease on test day.
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Пікірлер: 27

  • @dominatethegmat
    @dominatethegmat Жыл бұрын

    Ready to dominate the GMAT? Try us FREE and see for yourself why students trust DTP for their GMAT Prep. Start your Free Trial: www.dominatetestprep.com/offers/VYpvBfXa

  • @krntkd
    @krntkd4 жыл бұрын

    This was a great question. I am a first-time bomber of the GMAT and I am currently studying for it to take it before thanksgiving (full time job and having a family makes it pretty hard to dedicate time but I'm figuring it out!) I paused the question as soon as the video loaded to see if I could solve the problem and it was a great boost to my confidence because I was able to solve it in ~45 seconds. Here's what I wrote on my paper: p = 100 thru 299 q = 200 thru 299 p = 299!/99! q = 299!/199! p/q = (299!/99!)/(299!/199!) = (299!/99!)*(199!/299!) = 199!/99! Your videos have been so unbelievably helpful in programming my brain to look at problems a certain way. Thank you so much Brett!

  • @dominatethegmat

    @dominatethegmat

    4 жыл бұрын

    Awesome, Edmund. Thanks for sharing. I'm glad you've been finding this channel helpful. Good luck on the real thing and let us know how it goes. And have a great Thanksgiving with your family!

  • @ZlZSniP3DZlZ
    @ZlZSniP3DZlZ5 жыл бұрын

    I've struggled so much with this type of problem but I finally understand it, thank you!

  • @dominatethegmat

    @dominatethegmat

    5 жыл бұрын

    My pleasure, glad this video helped you have a breakthrough. Good luck the rest of the way and let me know how else I can help.

  • @priscillagarza8179
    @priscillagarza81794 жыл бұрын

    So helpful! Thank you!!!

  • @dominatethegmat

    @dominatethegmat

    4 жыл бұрын

    You're welcome!

  • @shobhitjain6905
    @shobhitjain69055 жыл бұрын

    that was very helpful!

  • @dominatethegmat

    @dominatethegmat

    5 жыл бұрын

    Great, I'm glad you enjoyed it!

  • @janeasam786
    @janeasam7865 жыл бұрын

    Thanks so much

  • @dominatethegmat

    @dominatethegmat

    5 жыл бұрын

    My pleasure, glad it helped!

  • @yahyakhalili9150
    @yahyakhalili91505 жыл бұрын

    TNX

  • @dominatethegmat

    @dominatethegmat

    5 жыл бұрын

    My pleasure! Glad it helped.

  • @minaazad2274
    @minaazad22742 жыл бұрын

    Sir is it good to solve this question without writing? If it's possible please share us hard questions more. Myself i have a problem in geometry.

  • @fadilnatakusumah195
    @fadilnatakusumah1954 жыл бұрын

    I'm amazed by how you write those with mouse

  • @dominatethegmat

    @dominatethegmat

    4 жыл бұрын

    I actually use a trackpad with a digital pen that plugs in to my USB port and acts like a mouse. Much easier to write that way! But thanks for the compliment. I hope you found this video helpful.

  • @fadilnatakusumah195

    @fadilnatakusumah195

    4 жыл бұрын

    @@dominatethegmat haha i knew it. I knew that was too good to be made with mouse. Yes yes, your videos are very helpful, thank you so much

  • @coulibalychigata9174
    @coulibalychigata91743 жыл бұрын

    @Dominate the GMAT is it possible to have a video for using factorial in trailing zero question?

  • @dominatethegmat

    @dominatethegmat

    3 жыл бұрын

    There's an example or two like that in the GMAT Official Guide, and I do have video solutions for all of those questions included with the Gold and Platinum packages of my course. Is there a particular sample question you're curious about?

  • @coulibalychigata9174

    @coulibalychigata9174

    3 жыл бұрын

    Thanks a lot for your reply, yours videos are so helpful. Of course i am curious about that topic. 🤣.

  • @wilsonvinas5906
    @wilsonvinas59065 жыл бұрын

    What level question would this be?

  • @dominatethegmat

    @dominatethegmat

    5 жыл бұрын

    I'd say it's a mid- to upper-600 level question.

  • @Guess963
    @Guess9634 жыл бұрын

    Dude your so fucking cool

  • @27gio92
    @27gio923 жыл бұрын

    Was 299-100 / 299 - 200 = 199 / 99 only a solution related to chance?

  • @dominatethegmat

    @dominatethegmat

    3 жыл бұрын

    Yes. It's good to be lucky sometimes, though!

  • @varunb82
    @varunb825 жыл бұрын

    C is the answer I think