Combinatorics and Probability.

[kamsmandal]

Hi,

I am doing self study and I have the whole set of books (no online tutorial). I don't really get 'Combinatorics and Probability', is there some other reference books other than the material provided by Manhattan, I can go through. I can get the easy ones. The ones with difficulty level 700-800, are troubling me.

I have taken 3 tests in GMAT. I don't seem to progress much. I started with 590 and in third I am still 610. My target is 700+, I am working on my time strategy and other weaknesses. However, I need more advance practice questions. The online practice tests are not of enough difficulty level. I need difficult questions (700-800) for both quant and verbal for practice.

Thanks in advance for the pointers.

Regards,
Kamna

[adiagr]

Hi,

I am doing self study and I have the whole set of books (no online tutorial). I don't really get 'Combinatorics and Probability', is there some other reference books other than the material provided by Manhattan, I can go through. I can get the easy ones. The ones with difficulty level 700-800, are troubling me.

I have taken 3 tests in GMAT. I don't seem to progress much. I started with 590 and in third I am still 610. My target is 700+, I am working on my time strategy and other weaknesses. However, I need more advance practice questions. The online practice tests are not of enough difficulty level. I need difficult questions (700-800) for both quant and verbal for practice.

Thanks in advance for the pointers.

Regards,
Kamna

In case you are based in India, Hall & Knight's Algebra book or
R. S. Aggarwal's book can be referred.

Moderators, in case posting name of other authors is against Manhattan's policy, I apologise in advance.

Aditya

[tim]

Kamna,

if you are doing our guided self-study, be sure to use your office hours to ask about combinatorics. otherwise, post some specific questions here on the board and we can help you out..

as for your alleged need for 700-800 level problems, this is most definitely NOT what you need right now if your score is still hovering around 600. This score indicates you are missing a lot of questions in the 600s, and until you can nail those questions very solidly you'll never get to a position where you can show the GMAT your 700-800 skills because the computer just won't be giving you problems of that level..