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What’s the sauce for Quant beyond 705 number properties and arithmetic - I feel my mind boggles a lot with keeping information tight around positive integers/ or just integers; min-Maxing variables and spl. Working the variables and finding number of factors/ prime or even on a question like this for which I am attaching an image. What do you guys think is the real crux to crack atleast 60% of questions at this level?
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Answer is C
And what do you think is the correct answer for whatever I hv written in my caption?
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An unpainted wall with a total area of 100 square feet needed to be painted with three coats of paint. Nelson began the job by painting an area of 60 square feet. Then, Jamaica painted a total area of 70 square feet. Finally, Bryan painted a total area of 80 square feet. Aȇer Bryan finished painting, an area of q square feet of the wall was covered in three coats of paint. If the entire surface area of the wall had received at least one coat of paint, which of the following specifies all the possible values of q ?

(A) 0 ≤ q ≤ 50

(B) 0 ≤ q ≤ 60

(C) 10 ≤ q ≤ 50

(D) 10 ≤ q ≤ 55

(E) 10 ≤ q ≤ 60

For this question why isnt <=60? When i do it through a diagram i shade the 60, then 70 overlaps the 60 leaving 10 of just 70 to be 1 layer of paint, 20 of no layers then 80 comes in distributed over the 20 of no paint and and remaining 60 can be on the one with 2 layers

WA@van3671
942-249= 693
693÷7= 99
I dont follow you method, you got the difference and divided it by 7 but the question asks for how many such 3 digit number exists. How come your approach works ? please explain

As per me the answer is E
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What’s the sauce for Quant beyond 705 number properties and arithmetic - I feel my mind boggles a lot with keeping information tight around positive integers/ or just integers; min-Maxing variables and spl. Working the variables and finding number of factors/ prime or even on a question like this for which I am attaching an image. What do you guys think is the real crux to crack atleast 60% of questions at this level?
I believe the real deal is understanding how to simplify the question into an algebraic pattern (most cases it's this). Building number sense is key. Understanding the foundational rules of how numbers work, for instance, units digit, odds, evens, exponents etc. is important. Lastly, there are times that plugging in numbers is efficient, just gotta understand when to do that
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I believe the real deal is understanding how to simplify the question into an algebraic pattern (most cases it's this). Building number sense is key. Understanding the foundational rules of how numbers work, for instance, units digit, odds, evens, exponents etc. is important. Lastly, there are times that plugging in numbers is efficient, just gotta understand when to do that
Thank you 🤝
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ribbons
As per me the answer is E
Yes
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ribbons
An unpainted wall with a total area of 100 square feet needed to be painted with three coats of paint. Nelson began the job by painting an area of 60 square feet. Then, Jamaica painted a total area of 70 square feet. Finally, Bryan painted a total area of 80 square feet. Aȇer Bryan finished painting, an area of q square feet of the wall was covered in three coats of paint. If the entire surface area of the wall had received at least one coat of paint, which of the following specifies all the possible values of q ?

(A) 0 ≤ q ≤ 50

(B) 0 ≤ q ≤ 60

(C) 10 ≤ q ≤ 50

(D) 10 ≤ q ≤ 55

(E) 10 ≤ q ≤ 60

For this question why isnt <=60? When i do it through a diagram i shade the 60, then 70 overlaps the 60 leaving 10 of just 70 to be 1 layer of paint, 20 of no layers then 80 comes in distributed over the 20 of no paint and and remaining 60 can be on the one with 2 layers
concept and reasoning in this question we can reduce the question to 99(a-c) must be a multiple of 7 since 99 is not a multiple then a-c must be a multiple and then a> c so we have only 2 choice 9-2 and 8 - 1 and b can be any value it doesn’t matter so for b we have 9 values
then the no. of possibility would be 2 * 9 = 18 so 18 is the answer

estpossimus
concept and reasoning in this question we can reduce the question to 99(a-c) must be a multiple of 7 since 99 is not a multiple then a-c must be a multiple and then a> c so we have only 2 choice 9-2 and 8 - 1 and b can be any value it doesn’t matter so for b we have 9 values
then the no. of possibility would be 2 * 9 = 18 so 18 is the answer
sorry sent in the wrong chat

JM007

What’s the sauce for Quant beyond 705 number properties and arithmetic - I feel my mind boggles a lot with keeping information tight around positive integers/ or just integers; min-Maxing variables and spl. Working the variables and finding number of factors/ prime or even on a question like this for which I am attaching an image. What do you guys think is the real crux to crack atleast 60% of questions at this level?
it was for this question
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Hey everyone!
I’m planning to prepare for the GMAT and had a few doubts.

I scored 85% in 10th, 73% in 12th, and completed my B.E. in Mechanical and Automation Engineering with 83%. Later, I pursued an M.Tech in Engineering Design and secured 71%. I’ve been working as a CAE Engineer in the automotive sector for over 3 years and now plan to pursue a one-year MBA from ISB or IIMs.

My question is — will my past academic scores affect my eligibility or chances of getting shortlisted for IIMs/ISB and later during placements?
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Hey everyone!
I’m planning to prepare for the GMAT and had a few doubts.

I scored 85% in 10th, 73% in 12th, and completed my B.E. in Mechanical and Automation Engineering with 83%. Later, I pursued an M.Tech in Engineering Design and secured 71%. I’ve been working as a CAE Engineer in the automotive sector for over 3 years and now plan to pursue a one-year MBA from ISB or IIMs.

My question is — will my past academic scores affect my eligibility or chances of getting shortlisted for IIMs/ISB and later during placements?
Shouldn't really. A bschool mostly cares about work ex, unless you're a fresh grad. Try to highlight the work you've done in your app profile.
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How much time are you dedicating on coordinate geometry? or is it most us’s last priority on quant?
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How much time are you dedicating on coordinate geometry? or is it most us’s last priority on quant?
Yes
I'm treating this as last priority concept
Just learnt all the base formulas and base problems
Out of 9 mocks that I've given, I haven't seen any question on coordinate geometry
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Hi...Just bought official mock 3 and 4...Haven’t received the activation code....Any idea what should I do?
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Yes
I'm treating this as last priority concept
Just learnt all the base formulas and base problems
Out of 9 mocks that I've given, I haven't seen any question on coordinate geometry
got it 👍🏻
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JM007
How much time are you dedicating on coordinate geometry? or is it most us’s last priority on quant?
It is not a part of gmat fe
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*ribbons writes:*
> How much time are you dedicating on coordinate geometry? or is it most us’s last priority on quant?
It is not a part of gmat fe
where’s the official statement about this?
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