Last visit was: 23 May 2024, 04:30 It is currently 23 May 2024, 04:30
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
SORT BY:
Date
Tags:
Show Tags
Hide Tags
Intern
Intern
Joined: 05 Mar 2024
Posts: 17
Own Kudos [?]: 5 [0]
Given Kudos: 1
Send PM
Manager
Manager
Joined: 06 Oct 2023
Posts: 244
Own Kudos [?]: 78 [0]
Given Kudos: 43
Send PM
Intern
Intern
Joined: 05 Mar 2024
Posts: 17
Own Kudos [?]: 5 [0]
Given Kudos: 1
Send PM
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
Data Sufficiency Butler: April 2024
April 30DS 1DS 2
­
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
Problem Solving Butler: April 2023
April 30PS 1PS 2
Manager
Manager
Joined: 25 Oct 2017
Posts: 116
Own Kudos [?]: 46 [0]
Given Kudos: 684
GMAT Focus 1:
655 Q87 V80 DI80
GMAT 1: 690 Q49 V35
Send PM
Re: Quant Question of the Day Chat [#permalink]
PrabhatKC wrote:
Hloo. I’m still confused. In the question above, Shouldn’t the remaining work of B after A has done his 2/3rd of the work be, 1-(1/5*(1-2/3)? and not (1-1/5)*(1-2/3) ?

Think of it like this, there’s a cookie, A ate 2/3 of the cookie, 1/3rd is remaining, B eats 1/5th of this 1/3rd (and not 1/5th of the whole!). All in all he ate 1/5*1/3. So the remaining cookie will be 4/5ths of what was left after A ate which is 4/5th of the initial 1/3rd left by A. Now, you can write 4/5 as (1-1/5) and 1/3 as (1-2/3) and hence the term (1-1/5)(1-2/3)

Hope your doubt is resolved
Intern
Intern
Joined: 05 Mar 2024
Posts: 17
Own Kudos [?]: 5 [0]
Given Kudos: 1
Send PM
Re: Quant Question of the Day Chat [#permalink]
Thanks. You know the concept from up to down.
Wow!
Manager
Manager
Joined: 25 Oct 2017
Posts: 116
Own Kudos [?]: 46 [0]
Given Kudos: 684
GMAT Focus 1:
655 Q87 V80 DI80
GMAT 1: 690 Q49 V35
Send PM
Re: Quant Question of the Day Chat [#permalink]
Once you set the fundamentals right by practicing, you can do this too! We should all strive for @Bunuel ’s level of creativity and perfection in our solutions and that’s a pretty high bar to achieve so we automatically get better along the journey :D
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Quant Question of the Day Chat [#permalink]
Expert Reply
Problem Solving Butler: May 2024
May 1DS 1DS 2

­
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
Data Sufficiency Butler: May 2024
May 1DS 1DS 2
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
Problem Solving Butler: May 2023
May 1PS 1PS 2

­
Manager
Manager
Joined: 18 Feb 2024
Posts: 61
Own Kudos [?]: 33 [0]
Given Kudos: 140
Send PM
Re: Quant Question of the Day Chat [#permalink]
Please can someone share his strategy to tackle MSR questions under the allowed time on the exam.

Sometimes I realised that question was easy to solve after spent much time on reading and understanding all the passages.
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [1]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
1
Kudos
Expert Reply
Data Sufficiency Butler: April 2024
May 2DS 1DS 2
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
Problem Solving Butler: April 2023
May 2PS 1PS 2
­
User avatar
Intern
Intern
Joined: 01 May 2024
Posts: 10
Own Kudos [?]: 0 [0]
Given Kudos: 3
Send PM
Re: Quant Question of the Day Chat [#permalink]
Hi

Hi

I can’t solve this question, can someone help me ?

Two machines, X and Y, working together at their respective constant rates for 14 hours, and then machine Y, working alone at its constant rate for an additional 4 hours, can produce a total of mitems. The time that it takes machine X, working alone at its constant rate, to produce m items is 8 hours less than the time that it takes machine Y, working alone at its constant rate, to produce m items. How many hours does it take machine Y, working alone at its constant rate, to produce m items?

possible answers:
28, 30, 32, 34, 36
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
khaos3787 wrote:
Hi

Hi

I can’t solve this question, can someone help me ?

Two machines, X and Y, working together at their respective constant rates for 14 hours, and then machine Y, working alone at its constant rate for an additional 4 hours, can produce a total of mitems. The time that it takes machine X, working alone at its constant rate, to produce m items is 8 hours less than the time that it takes machine Y, working alone at its constant rate, to produce m items. How many hours does it take machine Y, working alone at its constant rate, to produce m items?

possible answers:
28, 30, 32, 34, 36

­This question is discussed in detail here: 

https://gmatclub.com/forum/two-machines ... 20817.html

Hope it helps.
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
Data Sufficiency Butler: April 2024
May 3DS 1DS 2
Math Expert
Joined: 02 Sep 2009
Posts: 93417
Own Kudos [?]: 626011 [0]
Given Kudos: 81940
Send PM
Re: Quant Question of the Day Chat [#permalink]
Expert Reply
Problem Solving Butler: May 2023
May 3PS 1PS 2
User avatar
Intern
Intern
Joined: 17 Sep 2022
Posts: 14
Own Kudos [?]: 3 [0]
Given Kudos: 1
Send PM
Re: Quant Question of the Day Chat [#permalink]
ankitsawarkar wrote:
DS2: C??

I think it should be B for 2nd question

oh sorry I’m talking about PS2
Intern
Intern
Joined: 12 Jul 2023
Posts: 30
Own Kudos [?]: 25 [0]
Given Kudos: 5
Send PM
Re: Quant Question of the Day Chat [#permalink]
ankitsawarkar wrote:
DS2: C??

It should be D

Sorry A
GMAT Club Bot
Re: Quant Question of the Day Chat [#permalink]
   1  ...  225   226   227   228   229  ...  240   
Moderator:
Math Expert
93417 posts