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Quant Question of the Day Chat

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sh_076
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Re: Quant Question of the Day Chat [#permalink] New post  20 Sep 2023, 13:58
What was C again?

Oh it says both together are sufficient?

oh yes that is correct

Here is why
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sh_076
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Re: Quant Question of the Day Chat [#permalink] New post  20 Sep 2023, 14:03
(2) in itself gives no real information, I had assumed (1) is true but I wrote it wrong earlier

If (1) and (2) are true

The most expensive book will be

16.999999…..9
Then 16.999999….8
And least exp will be 13.999999…..8

If you add the integer parts you get $45 and for the decimals all three are < 1 so sum < 3

Thus total 45 + decimals < 48
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sh_076
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Re: Quant Question of the Day Chat [#permalink] New post  20 Sep 2023, 14:04
oh I haven’t registered yet
I may register for December maybe

I am just understanding the process/patterns/type of questions right now
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mysterymanrog
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Re: Quant Question of the Day Chat [#permalink] New post  20 Sep 2023, 14:51
SATYAM7777 wrote:
Is the sum of the prices of the 3 books that Shana bought less than $48 ? (1) The price of the most expensive of the 3 books that Shana bought is less than $17. (2) The price of the least expensive of the 3 books that Shana bought is exactly $3 less than the price of the second most expensive book.

1) If the most expensive book is less than 17 it can be max 17*3 or 51. So clearly ins

2) can have the case of 1,4,100 or 1,4,5. Ins.

3) In the worst case scenario, the most expensive book is 16,99, the middle expensive is 16.99 and the least expensive is 13.99 Which sums to under 48. Suff
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poojaarora1818
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Re: Quant Question of the Day Chat [#permalink] New post  20 Sep 2023, 19:26
sh_076 wrote:
“ Let probability of H be x and T be y Getting one H and one T is 2C1*x*y which is 1/3 meaning xy is 1/6 Now probability of getting 2H 2T is 4C2*x*x*y*y which is 6*(1/6)*(1/6) = 1/6” 2C1 and 4C2 are just number of ways we can get 1H 1T and 2H 2T combinations

Thank you so much for the precise explanation. Yes, it does help.
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sh_076
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Re: Quant Question of the Day Chat [#permalink] New post  20 Sep 2023, 21:14
Is it none of these?

Because of those who dint answer yes to q1 which is 3/5, we don’t know the further split?

or am I understanding this question wrong not sure
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sh_076
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Re: Quant Question of the Day Chat [#permalink] New post  20 Sep 2023, 21:27
Oh Nevermind, answer is “13/15” C

2/5 is q1Y
1/3* 2/5 is q1Y q2Y
Answer is 1 - q1Yq2Y
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yay5
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Re: Quant Question of the Day Chat [#permalink] New post  21 Sep 2023, 00:41
if 2/5 is q1Y then 3/5 is q1N = 9/15

shouldn’t the answer be less or equal to 9/15?
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gmatophobia
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Re: Quant Question of the Day Chat [#permalink] New post  21 Sep 2023, 05:29
DS Question 1 - September 21

S is a set of n consecutive positive integers. Is the mean of the set a positive integer?

(1) the range of S is an even integer

(2) the median of S is a positive integer

Source: Magoosh | Difficulty: Hard

PS Question 1 - September 21

The function f(n) is defined as the product of all integers from 1 to n, inclusive, and the function g(n) is defined as the product of all odd integers from 1 to n, inclusive, where n is a positive integer. If p is a prime factor of {f(150)/g(150)} + 1, then which of the following must be true?

A. p < 10
B. 10 < p < 25
C. 25 < p < 50
D. 50 < p < 75
E. p > 75

Source: e-GMAT | Difficulty: Hard
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1.01^(365) = 37.78

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Priyanshu2807
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Re: Quant Question of the Day Chat [#permalink] New post  21 Sep 2023, 18:35
gmatophobia wrote:
PS Question 1 - September 21 The function f(n) is defined as the product of all integers from 1 to n, inclusive, and the function g(n) is defined as the product of all odd integers from 1 to n, inclusive, where n is a positive integer. If p is a prime factor of {f(150)/g(150)} + 1, then which of the following must be true? A. p < 10 B. 10 < p < 25 C. 25 < p < 50 D. 50 < p < 75 E. p > 75 Source: e-GMAT | Difficulty: Hard

F(150) is basically 150!
When divided by odd factors of g(n), i.e., 150
Remains from 150! are, 150x148x146x.....x2
So, all the odd ones are out and all remaining can be written as a multiple of 2

(2x75)(2x74)......

2 is a prime no.

+1 basically is just remainder

It is the smallest prime divisor, so it has to be greater than 75

Priyanshu2807 wrote:
(2x75)(2x74)......

Simplified form is 2 with power of 75 x 75! +1
2^75 x 75! + 1
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sakthi439
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Re: Quant Question of the Day Chat [#permalink] New post  21 Sep 2023, 21:34
Hey guys, just want to know what materials are best for practicing GMAT level questions and is any resources available for free of cost!!?
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nivivacious
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Re: Quant Question of the Day Chat [#permalink] New post  21 Sep 2023, 21:40
Sakthi, do filter with tags and you would find tons of problems to practice here for free. The official problems are the best. Though I would advice you to try 750-800, 800+ to help you prep better (they’re extremely tough)
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belanieshaan
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Re: Quant Question of the Day Chat [#permalink] New post  22 Sep 2023, 01:55
If m and n are positive numbers and m/(m + n) = n/(m - n), what is the value of m/n?

can someone tell gow did they solve this question
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Ami0Trafalgar
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Re: Quant Question of the Day Chat [#permalink] New post  22 Sep 2023, 02:02
is this ds or ps? what are the options?
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Ami0Trafalgar
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Re: Quant Question of the Day Chat [#permalink] New post  22 Sep 2023, 02:14
I have put in all the steps for your understanding,
In the exam you will obviously skip some of the minor steps.

Hopefully it’s clear
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manntri
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Re: Quant Question of the Day Chat [#permalink] New post  22 Sep 2023, 20:27
Even after attempting few GMAT club quant mocks, number of mocks getting increased in test section. Hence I am facing repeated questions. Has anyone else faced similar issue? I tried reaching to BB, but he is not responding,
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Ami0Trafalgar
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Re: Quant Question of the Day Chat [#permalink] New post  22 Sep 2023, 20:33
Tests are a very valuable resource
Almost every forum or video you see will suggest you not to burn through them quickly, rather take your time with preparation and once even preparation has been done. You should take a mock, since only then will you see significant progress and issues to work on.
I found this out the hard way by giving my mocks repeatedly and getting false positives.
Only attempt mocks when you’ve covered a significant amount of portion.

Hope this helps!
All the best for your prep.

*Once enough
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gmatophobia
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Re: Quant Question of the Day Chat [#permalink] New post  22 Sep 2023, 21:48
Ami0Trafalgar wrote:
I have put in all the steps for your understanding, In the exam you will obviously skip some of the minor steps.

1 - root(2) is an option. Its option A. Do you see a reason to reject it ;)
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Power of Tiny Gains

1.01^(365) = 37.78

0.99^(365) = 0.03
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JayantJJ
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Re: Quant Question of the Day Chat [#permalink] New post  22 Sep 2023, 23:56
Hi

successive-percentage-418837.html

can anyone have the solution to solve the above question?
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Kunal1801
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Re: Quant Question of the Day Chat [#permalink] New post  23 Sep 2023, 00:12
JayantJJ wrote:
can anyone have the solution to solve the above question?

6 years
With compound interest formula
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Re: Quant Question of the Day Chat [#permalink]
23 Sep 2023, 00:12
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