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

srabonmahmud05

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24 Oct 2023, 00:39

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Can anyone help me to solve out?

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24 Oct 2023, 00:58

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Laila345

is there any website where i can find previous GMAT real exam qsts

I don’t think so

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24 Oct 2023, 06:15

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Laila345

is there any website where i can find previous GMAT real exam qsts

OG Qs are retired exam Qs iirc

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24 Oct 2023, 09:04

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Hey Guys can anyone help me figure this question out?: "Malik’s recipe for 4 servings of a certain dish requires 1one halfcups of pasta. According to this recipe, what is the number of cups of pasta that Malik will use the next time he prepares this dish?

(1) The next time he prepares this dish, Malik will make half as many servings as he did the last time he prepared the dish.

(2) Malik used 6 cups of pasta the last time he prepared this dish." It is a D.S

I answered A, but the correct asnwers C. Can anyone help me understand what I am missing!

RiyazAhamed

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24 Oct 2023, 09:21

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In A, there’s no we know how much servings he made last time. The premise only gives us information about the ratio required, it doesn’t mention anything about his “last preparation”. So, A is insufficient.

B says last time he made 6 servings, but this time or at current we still don’t know how many he’s going to make.

Together, bingo!

So, answer is C.

*no way we know

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24 Oct 2023, 13:53

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Can someone help me understand this question: "In the xy-coordinate plane, the slope of line ℓ is three fourths. Does line ℓ pass through the point open paren negative two thirds comma one half close paren ?

(1) Line ℓ passes through the point (4,4).
(2) Line ℓ passes through the point (–4,–2)."

In the xy-coordinate plane, the slope of line ℓ is three fourths. Does line ℓ pass through the point open paren negative two thirds comma one half close paren ?

(1) Line ℓ passes through the point (4,4).
(2) Line ℓ passes through the point (–4,–2).

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24 Oct 2023, 13:54

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farhanshrr

I answered A, but the correct asnwers C. Can anyone help me understand what I am missing!

The question asks for number of cups that Malik will use the NEXT time. With A, we don’t know how many servings he made the last time. Hence, Not Sufficient. With B, we can figure out that last time he used 6 cups hence, number of servings is 16. Again, we don’t have sufficient information to answer for the next time. Clubbing A and B together, we get our answer 😇

ArtfulDodger_2002

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24 Oct 2023, 17:01

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if anyone here needs TTP referral link, they can connect with me.

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25 Oct 2023, 03:36

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farhanshrr

In the xy-coordinate plane, the slope of line ℓ is three fourths. Does line ℓ pass through the point open paren negative two thirds comma one half close paren ? (1) Line ℓ passes through the point (4,4). (2) Line ℓ passes through the point (–4,–2).

If I understand correctly it’s asking whether the line passes through (-2/3,1/2)? Given : line has slope of (3/4)

Using Y = MX + C
M = 3/4
From 1 ... (4,4) .... 4 = (4)*(3/4) + c .. c= 1
Now, put values of (-2/3,1/2) in eqn ... 1/2= (-2/3)*(3/4) + 1 ...this is true ... sufficient
Same for 2....
(-4,-2) ... -2 = (-4*3/4) + c .... C is 1
Put the values and again it will satisfy the eqn ... sufficient

Answer is D

You don’t have to check the whether the point passes or not, just having the value of c suffices

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26 Oct 2023, 01:33

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can someone pelase explain thi

oops

Can someone pls explain this - From a class of 20 students whose names are listed in alphabetical order, a teacher will choose one group of 3 students to represent the class in a student congress. If the teacher will not choose a group of 3 students whose names are in 3 consecutive positions on the list, how many different groups of 3 students could be chosen by the teacher?

(A) 1120
(B) 1122
(C) 1135
(D) 1137
(E) 1140

Didn’t understand the explanation given

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26 Oct 2023, 02:18

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Best way to go about this is: Total combinations - combinations of choosing 3 consecutive students.

Total combinations is: 20C3 = 1140

Choosing 3 consecutive students:

Now, how many consecutive 3-student groups can be picked out from 20?

20/3 = 18. So there are total 18 consecutive 3-student groups.

Thus, 1140 - 18 = 1122. Answer D.

monikachauhan

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27 Oct 2023, 01:05

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is there a relationship between y or x intercept of a line with the slope of that line?

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27 Oct 2023, 02:07

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the-word-or-in-gmat-math-198829.html
Does this concept of OR still hold true?

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27 Oct 2023, 08:27

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Hi, i have bookmarked a reply on the gmat question of the day forum.. But now cannot find where the bookmarked is saved, or how to access that bookmark.
Can anybody please advice where to find these bookmarked replies/pages!!

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27 Oct 2023, 22:24

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Today I took my 5th practice test, despite my last scores consistently increasing to Q49, today I scored only Q40. Also my Verbal score dropped significantly due to anxiety of not performing well on Quant. Did anyone else face the same issue and how to overcome this?

Ontherox

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27 Oct 2023, 22:30

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My verbal performance on the 6th (final practice test) mock was very bad. Got low 30s. Until then, scored consistently scored 41-44 on all mocks. Was shocked. Then systematically prepared until the final exam. Scored 41. So, don’t get disheartened. Keep at it.

bb

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27 Oct 2023, 22:34

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The number of testtakers comment about the wild swings and a lower scores on the last two GMAT prep tests. If you notice and look at the number of mistakes, usually you actually would have as many or even fewer. My theory is that in big part that is because the last two tests contain very few hard questions and as the result any mistakes harshly penalized… Focus on your mistakes for these two tests don’t worry about the score as much

unfortunately these two tests are less reliable as the result

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