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GMAT Flashcards

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Re: GMAT Flashcards [#permalink]

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New post 07 May 2015, 13:32
On Page 20, I am pretty sure that it is 1A=2Ds.. So I think the answer should be 1:2 and not 2:1

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New post 11 May 2015, 07:41
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ZLukeZ wrote:
On Page 20, I am pretty sure that it is 1A=2Ds.. So I think the answer should be 1:2 and not 2:1


No, the answer is 2:1. If a = 2d, then a:d=2:1.

What is the ratio of a to d if 2a=3b, 1/2*b=2c, and 3c=d?

A) 1:2
B) 2:1
C) 2:3
D) 4:3
E) 1:5

2a = 3b --> a = 3/2*b
1/2*b = 2c --> b = 4c, thus a = 3/2*4c = 6c.

Therefore, a/d = 6c/3c = 2.

Answer: B.
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New post 01 Jul 2015, 10:19
Thank you for the resources! +1 kudo:)))

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New post 01 Jul 2015, 10:19
Thank you for the resources! +1 kudo:)))

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New post 20 Feb 2016, 20:20
I've got a question on the Arithmetic to Memorize flashcards.

Is it really recommended to memorize all the multiples of 8 to 160, the multiples of 12, to 120, the multiples of 15, to 150, the powers' of 2 up to 2^7, and the powers of 4 up to 4^4 and 3 up to 3^5?

Or should I just be able to calculate these values quickly. I know this is in excess of what the MGAT books recommend.

Looking for opinions before I dedicate the mental capital to memorize all theses.

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Re: GMAT Flashcards [#permalink]

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New post 21 Feb 2016, 14:06
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HI alextaylor116,

You ask a good question. The answer lies in how quickly you can actually work through the examples that you listed. So, try timing yourself - if you can physically calculate all of those end results perfectly and quickly, then you probably don't need to memorize them. However, if you make mistakes or are 'slow' with that work, then memorizing that information might be helpful to your overall performance in the Quant section.

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Re: GMAT Flashcards [#permalink]

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New post 21 Feb 2016, 21:35
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alextaylor116 wrote:
I've got a question on the Arithmetic to Memorize flashcards.

Is it really recommended to memorize all the multiples of 8 to 160, the multiples of 12, to 120, the multiples of 15, to 150, the powers' of 2 up to 2^7, and the powers of 4 up to 4^4 and 3 up to 3^5?

Or should I just be able to calculate these values quickly. I know this is in excess of what the MGAT books recommend.

Looking for opinions before I dedicate the mental capital to memorize all theses.


I would not recommend that. Do not try to burden yourself with memorizing too many things.
As long as you are able to calculate these values quickly, you are good to goo.
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GMAT Flashcards [#permalink]

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New post 22 Feb 2016, 21:33
This is really great for on-the-go prep. Thank you so much

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New post 22 Feb 2016, 23:09
This is really helpful, thanks BB

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New post 11 Mar 2016, 04:28
On Page 24, "Powers 9" problem; I'm sorry but could someone please elaborate the answer a bit. I'm having a bit of difficulty in understanding the logic of it.

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New post 29 Apr 2016, 12:33
Awesome! Very helpful!!
Thank you for this knowledge!

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Re: GMAT Flashcards [#permalink]

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New post 15 May 2016, 04:42
Hello bb,

The link is not valid, maybe, as I tried downloading the flashcards several times but could not. Could you please check at your end the validity of link and fix it, if required? Thanks.

Regards,
Pallavi

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New post 02 Jun 2016, 08:05
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Hi Guys! Bunuel bb

I am a heavy user now of Flashcards! Wow! so helpful

Two quick suggestions for inclusion:

* Mixture Problems
- basic approach and some alternative approaches

* Special characters
- basic approach

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New post 02 Jun 2016, 11:45
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felippemed wrote:
Hi Guys! Bunuel bb

I am a heavy user now of Flashcards! Wow! so helpful

Two quick suggestions for inclusion:

* Mixture Problems
- basic approach and some alternative approaches

* Special characters
- basic approach


1. Mixture Problems - theory and practice questions:
Weighted Average and Mixture Problems on the GMAT
Mixture Tips and Tricks
Mixture Problems Made Easy

DS Mixture Problems
PS Mixture Problems

2. Check function questions in our Special Questions Directory:

Operations/functions defining algebraic/arithmetic expressions
Symbols Representing Arithmetic Operation
Rounding Functions
Various Functions

Hope it helps.
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Resources:
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: GMAT Flashcards [#permalink]

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New post 03 Jun 2016, 05:09
Quote:
Hope it helps.


Always does!

Thank you!

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New post 07 Sep 2016, 14:27
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NIce work in compiling all the information at one place.

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New post 16 Sep 2016, 15:51
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Great work bb.
Very well written. I think its better to print this out and go through them on a regular basis to have a reminder of the concepts.

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Re: GMAT Flashcards [#permalink]

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New post 06 Oct 2016, 21:16
dora2014 wrote:
On Page 24, "Powers 9" problem; I'm sorry but could someone please elaborate the answer a bit. I'm having a bit of difficulty in understanding the logic of it.



same here,
In statement 1 m>n no matter we plug in m=2, n=1 or m=3, n=2. RHS>LHS. How did you conclude that statement 1 is insufficient ?
Also I'm having trouble understanding statement2, Can someone kindly decipher it.

Thanks in advance

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Re: GMAT Flashcards [#permalink]

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New post 20 Oct 2016, 10:10
Excellent work team! Really helpful :)
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Re: GMAT Flashcards [#permalink]

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New post 29 Mar 2017, 13:56
I loved thanks
I think the card triangles 8 ( ultra hard) should use greater than 1 instead less than 1.

It is a great question which Bunuel solved.
Since I am new, I cannot post the link to the old thread ( ds-triangle-m09q07-72173 )

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Re: GMAT Flashcards   [#permalink] 29 Mar 2017, 13:56

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