Planning & Executing

Got it, well...kind of. Alligations that it. Managed to find my old TIME notes, and went through quite a few questions from the book. Have a much better hang of averages too.

To Do:

1. Have to do some more questions from that book for DST & Work.
2. 19 tables (yes, still not done...should probably get to it NOW). FYI, learning my tables has really helped in calculating faster :) I loveeeee it!
3. Go through my FCs.

Am giving practice tests from GMATClub.com on Friday afternoon/evening and Saturday morning (free access to all tests!). So I must revise all this math stuff. Friday morning, I might do some Verbal if I have time so that my Saturday morning test can be a Verbal one.

Sunday morning (26th) is TEST DAY. Someone might lend me Kaplan practice tests, so will def give one of those.

Happy studying till then!

42 days to go

Did the chapter on Time & Work from TIME (CAT) material. :) Feel a lot more confident about it!
Tomorrow I'll dig into averages/mixtures/alligations and then onto practicing all 3 topics (1st one being Time, Speed & Distance) from Pagalguy.com's CAT Prep questions.

I'm practicing Quant from Grockit.com randomly. Good way to stay in touch with all Math topics.

Not really in the mood to practice verbal at the moment. Want to get great at Math, or atleast confident about all the stuff - I knew at some point and have forgotten along the way/ I can do.

Have done my tables from 13-18, still need to do 19 and revise all of it. Then onto squares and cubes and fractions (to decimals). :)

I'm feeling happier by the day!

Off to catch up on Psych episodes now. :) hehe.

1 hr to go to office 20 kms away, 1 hr 15 mins to come back. On an avg, how much time do I waste everyday?

Finished Distance, Speed & Time from a GMATClub post. The tabular representation method is brilliant. It saved me a lot of time, since I don't have to keep writing the different forms of the formula S=D/T for every component of the question. Am definitely using the table form from now on! :-)

Also went through the post on Work problems. Didn't require much effort since my concepts are pretty clear. The only issue I have here is the time I take to solve a question, if I only rely on my concept. I will need to practice a lot of Work problems, and probably revisit my TIME notes for shortcuts. Buit I will get back to this post my diagnostic test, as the diagnostic test is untimed. Plus, there is only a limit to how much I can do in every topic over the next 2 days. Yup, probably giving the test on Saturday. Should revise everything on Friday. Phew...

Update on P&C: went through most of the solved examples in RS Aggarwal, need to wrap up Combinations with the last few questions from the book. Once this is done, need to go back to the GMATClub Math book chapter on Probability and try solving those examples I was having trouble with.

As for Remainders, still need to speak to that friend regarding the questions from the link I did not understand.

CP #3

Another good question. They haven't posted the answer yet.

MGMAT Challenge Problem of the Week

10/26/09

Machines A, B, and C

Machines A, B, and C can either load nails into a bin or unload nails from that bin. Each machine works at a constant rate that is the same for loading and for unloading, although the individual machines may have different rates. Working together to load at their respective constant rates, machines A and B can load the bin in 6 minutes. Likewise, working together to load at their respective constant rates, machines B and C can load the bin in 9 minutes. How long will it take machine A to load the bin if machine C is simultaneously unloading the bin?

(A)	12 minutes
(B)	15 minutes
(C)	18 minutes
(D)	36 minutes
(E)	54 minutes

I think the answer is C. I don't think my method is long, but I do think I took a little extra time to think up of the process (again, cos I doubted my concept clarity a little, and so didn't quickly start to solve it the way I was thinking...tried applying formula first, but what good is that if I don't know the concept extremely well?). I'll wait till tomm for them to give the right answer, as well as their explanation. Then I'll compare my answer with theirs. 

Edit: The OA is C.