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Quant Question of the Day Chat

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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   20 Apr 2024, 16:34
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You can also post your questions in the GRE sub-forum. We just started one a few weeks ago 😇
multiple-choice-select-one-or-more-gre-467/
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   20 Apr 2024, 22:01
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nitish_qw wrote:
please help me out in this

You could post in the forum to get your answer. Otherwise teh answer would be 1. Since the arithmetic mean is 45k and not all are at 45k(range is 6k), none above and all above can be discarded directly. Next 1: surely one can be 3k above 45k and another 3k below 45k. Remaining three can be 45k. Possible…..finally 4: say each of these is x above 45k, so this has to be offset by the fifth one which is below 45k, that is 4x=y, but x+y=range=6000 or x=1200. Salaries are 46200,46200,46200,46200,40200.. But the salary is a multiple of 1000…not possible
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   20 Apr 2024, 23:55
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We have two equations and three variables b, s and p: 50b+70s+100p=16000 and b+s+p=200. We require one more equation to find variables. Statement 1 gives b=s and statement 2 gives p=2b. Thus we will find answer in each case. Last statement tells us one of b, s or p is 100. Since average is 80 and closer to 100 as compared to 50, basic cannot be 100 but s and p can be 100: two cases 50,50,100 and 20,100,80. Thus, first two yes and third no
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 01:15
for this , you have to see the number of solutions for the equation , y=( x^2-x)(x-2). This eq can be rearranged as (x)(x-1)(x-2) by taking x common from x^2-x ......... now we can clearly see that equation y= (x)(x-1)(x-2) has three solutions 0,1,2 .. so graph that cuts x-axis at three points 0,1,2 will be the best representation of the function y

option ’d’ will be the answer
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 01:41
When x is between 0 and 1, y is positive which is shown in graph D
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 01:48
There is a 10% chance of rain on a particular day. If it rains, there is a 10% chance _ that Jfon will go to school, out if it does not rain, he wil definitely go to school. What is the probability that Jon will go to school?
How to solve this usinf table? Or can this not be solved using table? Please help
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 01:50
D.
Why not C? Easy to test. Take a value beyond x = 2. Say x = 5.
When x = 5, y = (5)(5-1)(5-2) = 5*4*3 = a +ve value. For choice C, the y value for an x=5 is negative. Choice D is correct.

Do check out "wavy line method". The concept will be useful in this regard, I believe.

Should be "wavy curve", I guess :P
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 02:11
PrabhatKC wrote:
There is a 10% chance of rain on a particular day. If it rains, there is a 10% chance _ that Jfon will go to school, out if it does not rain, he wil definitely go to school. What is the probability that Jon will go to school? How to solve this usinf table? Or can this not be solved using table? Please help

The question can be solved using table too.
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 02:23
My attempt. Hope this is correct.
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 05:53
guys can anyone make a separate chat for GRE
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 05:53
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y=(x^2-x)(x-2)=x(x-1)(x-2). So, y will be 0 when x=0,1, and 2, that is the curve will cut graph at 0, 1 and 2. Only C and D left........... Next, when x>2, all three x, x-1 and x-2 will be positive, and product of three positive is positive. Thus after cutting x-axis at 2, the line should give y as positive always..... OR You could just take x as 3, and see that y=3*1*2=6. D gives you positive value while C gives a negative value for y at x=3...answer is D
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 05:53
for rest GMAT students, Alex these questions are confusing and not important
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 05:54
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aayushimehta12 is correct. The questions could be posted in GRE forum.
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 05:55
Thank you, because the entire time I am looking at questions and being confused is this are and gmat, am I supposed to know the answer or not

so Nitish and Alex, requesting you to please post these questions elsewhere
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 06:04
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Just opened a new chat on GRE. Please post Quant questions/queries here mchat.php?room_id=50050793&invite=gDTbu4XAMJEh6csH9KGx0CPSIymZBFrOvap2q5YnLRNdel1kzoQit73WUjV8wf
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 06:10
Sorry for that actually my xm is near
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 09:58
HarshR9 wrote:
My attempt. Hope this is correct.

i am also getting 91
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 10:33
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Check out these two new GMAT Club tests questions on Absolute Values:
https://gmatclub.com/forum/if-x-and-y-a ... 28841.html
https://gmatclub.com/forum/if-x-and-y-a ... 28840.html
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 10:55
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One more new GMAT Club Tests question on Absolute Values:

https://gmatclub.com/forum/if-a-b-b-c-2 ... 28843.html
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Re: Quant Question of the Day Chat [#permalink] Quant Question of the Day Chat   21 Apr 2024, 11:16
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Another two new GMAT Club Tests questions on Absolute Values:
https://gmatclub.com/forum/if-x-y-1-wha ... 28847.html
https://gmatclub.com/forum/if-x-y-0-wha ... 28846.html­
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Re: Quant Question of the Day Chat [#permalink]
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