Quant Question of the Day Chat : Quantitative Questions

bb · 2022-10-20T20:57:38-07:00

Hello everyone and welcome to the GMAT Club's Quant Question of the Day If you would like to join the Quant Question of the Day Chat Group, Join the chat group here Group moderator is gmatophobia Welcome aboard! -BB And I have some news for the group - I would like to welcome gmatophobia as the new Moderator of this chat group. Please give him a day or two to get situation and get this group going with posting questions as well as sharing any interesting posts and links. Welcome gmatophobia - you are the first Quant Chat group moderator we have had

Maxsparrow

Joined: 19 Aug 2023

Last visit: 07 Jun 2024

Posts: 67

Own Kudos:

39

Given Kudos: 82

Location: Indonesia

GMAT Focus 1: 695 Q85 V83 DI85 Verified score

GMAT 1: 640 Q49 V27 Verified score

GMAT 2: 640 Q50 V26 Verified score

GMAT Focus 1: 695 Q85 V83 DI85 Verified score

GMAT 2: 640 Q50 V26 Verified score

Posts: 67

Kudos: 39

17 Jan 2024, 23:00

Kudos

Bookmarks

Hi guys, I need to discuss something. For DS Question, there is this prompt:
>> The points (4,2) and (4,–5) are on line ℓ
Is line x=4 is the only possibility or can I think of it as a potential quadratic equation, like a circle for example

VivekSri

Joined: 01 May 2022

Last visit: 23 Jan 2025

Posts: 479

Own Kudos:

611

Given Kudos: 117

Location: India

WE:Engineering (Computer Software)

Posts: 479

Kudos: 611

17 Jan 2024, 23:22

Kudos

Bookmarks

Maxsparrow

Hi guys, I need to discuss something. For DS Question, there is this prompt: >> The points (4,2) and (4,–5) are on line ℓ Is line x=4 is the only possibility or can I think of it as a potential quadratic equation, like a circle for example

Hi as per two points you can only find equation of line, for quadratic equation three non collinear and four cubic curve four non collinear and for ellipse five non collinear point. for circle you need at least three non collinear points

So for this x=4 is only thing that can be possible as per my thinking

SHRAVYA007

Joined: 28 Oct 2023

Last visit: 13 May 2024

Posts: 17

Own Kudos:

7

Given Kudos: 5

Posts: 17

Kudos: 7

17 Jan 2024, 23:26

Kudos

Bookmarks

Sidharth11, options please!

VivekSri

Joined: 01 May 2022

Last visit: 23 Jan 2025

Posts: 479

Own Kudos:

611

Given Kudos: 117

Location: India

WE:Engineering (Computer Software)

Posts: 479

Kudos: 611

17 Jan 2024, 23:39

Kudos

Bookmarks

Sidharth11

Can anyone solve this ? For how many values of x,[ (x+3)^ 2/ x+9 ] is an integer, where x is a natural number?

I think for 4 possible value of x these are integer x can be 0,3,9, and 27

VivekSri

Joined: 01 May 2022

Last visit: 23 Jan 2025

Posts: 479

Own Kudos:

611

Given Kudos: 117

Location: India

WE:Engineering (Computer Software)

Posts: 479

Kudos: 611

17 Jan 2024, 23:40

Kudos

Bookmarks

My bad x cant be zero it is asking x has to be natural number so x can 3,9 and 27

Bunuel

Math Expert

Joined: 02 Sep 2009

Last visit: 23 Jan 2025

Posts: 98,904

Own Kudos:

696,112

Given Kudos: 91,888

Products:

Expert reply

Posts: 98,904

Kudos: 696,112

18 Jan 2024, 00:32

Kudos

Bookmarks

Maxsparrow

Hi guys, I need to discuss something. For DS Question, there is this prompt:
>> The points (4,2) and (4,–5) are on line ℓ
Is line x=4 is the only possibility or can I think of it as a potential quadratic equation, like a circle for example

That question is discussed here: https://gmatclub.com/forum/is-line-para ... 24959.html Hope it helps.

Bunuel

Math Expert

Joined: 02 Sep 2009

Last visit: 23 Jan 2025

Posts: 98,904

Own Kudos:

696,112

Given Kudos: 91,888

Products:

Expert reply

Posts: 98,904

Kudos: 696,112

18 Jan 2024, 01:02

Kudos

Bookmarks

Maxsparrow

Hi guys, I need to discuss something. For DS Question, there is this prompt:
>> The points (4,2) and (4,–5) are on line ℓ
Is line x=4 is the only possibility or can I think of it as a potential quadratic equation, like a circle for example

To address your question, it's important to understand that in Euclidean geometry, a line is defined as a straight curve. On a coordinate plane, lines are represented algebraically through linear equations and functions. Therefore, the line in question cannot be a circle or a parabola, as these are not straight curves.

VivekSri

Joined: 01 May 2022

Last visit: 23 Jan 2025

Posts: 479

Own Kudos:

611

Given Kudos: 117

Location: India

WE:Engineering (Computer Software)

Posts: 479

Kudos: 611

18 Jan 2024, 01:07

Kudos

Bookmarks

Bunuel

To address your question, it’s important to understand that in Euclidean geometry, a line is defined as a straight curve. On a coordinate plane, lines are represented algebraically through linear equations and functions. Therefore, the line in question cannot be a circle or a parabola, as these are not straight curves.

Hi Bunuel , in focus edition Geometry won’t come right? so we would not get these type of question?

Bunuel

Math Expert

Joined: 02 Sep 2009

Last visit: 23 Jan 2025

Posts: 98,904

Own Kudos:

696,112

Given Kudos: 91,888

Products:

Expert reply

Posts: 98,904

Kudos: 696,112

18 Jan 2024, 01:23

Kudos

Bookmarks

VivekPrateek

Bunuel

To address your question, it’s important to understand that in Euclidean geometry, a line is defined as a straight curve. On a coordinate plane, lines are represented algebraically through linear equations and functions. Therefore, the line in question cannot be a circle or a parabola, as these are not straight curves.

Hi Bunuel , in focus edition Geometry won’t come right? so we would not get these type of question?

As far as I know (taken from here: https://gmatclub.com/forum/gmat-focus-e ... 08213.html), in the GMAT Focus edition, some concepts of coordinate geometry are still tested, but they have been categorized under the Functions or Algebra sections.

hathanhnguyen.811

Joined: 14 Jan 2024

Last visit: 19 May 2024

Posts: 11

Own Kudos:

2

Given Kudos: 10

Posts: 11

Kudos: 2

18 Jan 2024, 03:02

Kudos

Bookmarks

Hi guys, could anyone please help me to elaborate the why the answer for this is 1/6?

Hi guys, could anyone please help me to elaborate why the answer for this is 1/6?
(Sorry for spamming, I just sent the wrong pic so I am sending this again)

Shradhzkapoor

Joined: 19 Jul 2023

Last visit: 22 Jan 2025

Posts: 48

Own Kudos:

13

Given Kudos: 6

Schools: ISB '27 (A) Johnson '27 (WL)

Posts: 48

Kudos: 13

18 Jan 2024, 03:17

Kudos

Bookmarks

@hathanhngueyn hope this helps

AyushAgicha

Joined: 18 Jan 2024

Last visit: 11 Jun 2024

Posts: 1

Kudos: 0

18 Jan 2024, 04:37

Kudos

Bookmarks

There are 140 students in a school. The number of students who play Cricket, Football and Hockey are 50, 80 and 70 respectively. The ratio of the number of students who play more than one of the three sports to the number of students who play all the three sports is 3 : 2. If each student of the school plays at least one of the three sports, then how many students play exactly two of the three sports?(a) 12 (b) 14 (c) 16 (d) 20 (e) 24

AyushAgicha

There are 140 students in a school. The number of students who play Cricket, Football and Hockey are 50, 80 and 70 respectively. The ratio of the number of students who play more than one of the three sports to the number of students who play all the three sports is 3 : 2. If each student of the school plays at least one of the three sports, then how many students play exactly two of the three sports?(a) 12 (b) 14 (c) 16 (d) 20 (e) 24

can someone please provide a detailed solution

MrWhite

Joined: 23 Feb 2022

Last visit: 21 Jan 2025

Posts: 36

Own Kudos:

789

Given Kudos: 93

Location: New Zealand

Concentration: Strategy, General Management

Schools: Oxford Said'25 (A)

GMAT Focus 1: 645 Q83 V84 DI79 Verified score

GMAT 1: 650 Q46 V34 Verified score

GPA: 8.5/9

WE:Engineering (Consulting)

Schools: Oxford Said'25 (A)

GMAT Focus 1: 645 Q83 V84 DI79 Verified score

GMAT 1: 650 Q46 V34 Verified score

Posts: 36

Kudos: 789

18 Jan 2024, 05:06

Kudos

Bookmarks

Is the answer A?
T = A+ B + C + Neither - Exactly 2 - 2*(Exactly 3)

140 = 50 + 70 + 80 + 0 - Exactly 2 - 2 * (Exactly 3)

Yielding =>

Exactly 2 = 60 - 2*(Exactly 3)

Now from given ratios=>

(Ex 2 + Ex 3) / (Ex 3) = 3/2

Rearrange to get Ex 2 =>

Ex 2 = 0.5*(Ex 3)

Ex 3 = 2*(Ex 2)
Hence =>

Ex 2 = 60 - 4*(Ex 2)

Thus Ex 2 = 12.

advanced-overlapping-sets-problems-144260.html

Rohan271

Joined: 10 Apr 2023

Last visit: 21 Jan 2025

Posts: 79

Own Kudos:

30

Given Kudos: 75

Location: India

Posts: 79

Kudos: 30

18 Jan 2024, 05:25

Kudos

Bookmarks

A sequence a_n defined such that a_{n} = a_{n-1} - a_{n-2} ,where n are integers greater than 2. What is the value of a_5 ?

(1) a_{4} - a_{3} = 3
(2) a_{14} = 1

How is option 2 sufficient

hathanhnguyen.811

Joined: 14 Jan 2024

Last visit: 19 May 2024

Posts: 11

Own Kudos:

2

Given Kudos: 10

Posts: 11

Kudos: 2

18 Jan 2024, 05:41

Kudos

Bookmarks

Does anyone have solution for this ?

grpi

Joined: 30 Oct 2023

Last visit: 27 Oct 2024

Posts: 2

Own Kudos:

7

Given Kudos: 3

Location: Italy

Posts: 2

Kudos: 7

18 Jan 2024, 06:55

Kudos

Bookmarks

(5/6+2/3+1/2)/2 = (5/6+4/6+3/6)/2 = (12/6)/2 = 1

kvet

Joined: 07 Jan 2024

Last visit: 09 Apr 2024

Posts: 1

Own Kudos:

1

Posts: 1

Kudos: 1

18 Jan 2024, 06:56

Kudos

Bookmarks

hathanhnguyen.811

Does anyone have solution for this ?

A and B will fill 5/6 of tank capacity in one hour.
A and C will fill 2/3 of tank capacity in one hour. B and C will fill 1/2 tank capacity in one hour.

Adding all together, we assume to have 2 pipes of A, B & C, which will fill (6/5 + 3/2 + 1/2) = 2 tank capacity.

Dividing by 2 to reduce from 6 pipes (2x A, B & C), we get 1 tank capacity in 1 hour. Hence option D is right

Data Sufficiency Butler: January 2024
January 17	DS 1	DS 2

Problem Solving Butler: January 2024
January 17	PS 1	PS 2

Quant Question of the Day Chat

Prep Toolkit

My Rewards