Help!! Kaplan and Actual GMAT score comparisons

[chango]

Originally Posted by anjinsan

first off, i had access to 8 kaplan cat's because i was enrolled in kaplan classroom course here in usa and thus had access to all the online resources of kaplan.

and i just took the GMATPrep test #1, scored a disappointing 690 (q47 v38 )

i made bunch of stupid mistakes, hopefully will do better tomorrow on my second GMATPrep test and on monday at the actual gmat.

keya: some things i noticed was that verbal was somewhat easier than kaplan, it had 4 RC passages instead of 3. but they were more clear.

math part was a little tricky, not necessarily easier or harder than kaplan, but just "different". i made some stupid errors, hence scored a disapoointing 47 (was scoring 50 on kaplan cat).

but overall it was a good experience, definetely keep me updated on your kaplan cat's and/or GMATPrep tests.

good luck

anjinsan

buddy .... i hv my GMAT on 30th August .... started my prep few days back .... tuk the frst of 4 Kaplan tests and scored a miserable 610 .... but i m sure i will do well if i work hard ..... have finished 1000 SC and OG 10 in parts ..... will strt OG 11 today and go in a systematic way ...... all the best for ur test and plz do pass sum tips for RC .... finding them to b tough to handle

[Keya]

Hi Kunal,

Thanks for the morale boost.... I truly truly hope you are right I AM aiming above 750, and that is why the scores were scaring me.
Should also mention that I have a print out of your scores (Kaplan and GMAT).... and have been praying for scores like yours

I gave my first GMATPrep CAT today... and panicked again..... But the score was a bit more than I expected with my dismal performance. (I know you got a 780 on this)

I got 720 Q49 V38. If I hadn't panicked I could have pushed it up to Q50 V43 which would have put me accross the 750 barrier.

You're right, the idea is NOT to sweat.... Lay on the Fa !!!

But seriously Kunal, I'd like your advice in something. Today, I totally messed up my SCs in the Prep Test. And it's not like I am bad at it... in the OG, I had an accuracy rate of about 90%.... today, it was not even 10%!!!!! Either it was because I panicked... or.. or I don't know. But can you think of anything I can do in this eleventh hour??

I am planning to go through my SC notes again...

One more thing... and this is out to all the people on this forum... there are no explanations to the GMATPrep questions. Can anyone help if I post those questions here... I'm on firefighting mode, and would really appreciate any help that I can get.

I'm monitoring this post real time, so I'll be able to read the responses as soon as you guys post them.... please help!!!

Thanks!!
Keya

[cybericy]

Hi,
I just did Kaplan Test 1 right now, and it sure doesnt boost your morale much.
Got a (below ? ) avg 670 : Q41 / V 38

I havent yet done analysis on section wise performance, but questions in both V and Q are definitely more complicated than in the Princeton tests.

Was following this thread , and ATB to Keya and Anjinsan for your GMAT this week. Do post your scores and your experiences post D day

Cheers
~icy

[Keya]

Hi Cybericy,

Don't worry, 670 is pretty decent in Kaplan. I got the same and panicked, but people have been telling me that it's a pretty good score for Kaplan.

Just keep your cool and don't panic like I did... and you ought to do fine.

ATB
Keya

[anjinsan]

hey keya,

took my second gmatprep and scored 690 again. (q48 v36)
very disappointing for verbal.

i think at this point i am DONE with my studies for gmat. i will practice few question sets tomorrow and take the real think monday morning!


by the way, can somebody please post the solution to this problem, i saw it today on gmatprep, it seemed easy but turned out i was wrong.

Question : what is the greatest prime factor of 2 to the power of 28 substracted from 4 to the power of 17?

a)2
b)3
c)5
d)7
e)11

[Eccentric001]

Originally Posted by anjinsan

Question : what is the greatest prime factor of 2 to the power of 28 substracted from 4 to the power of 17?

a)2
b)3
c)5
d)7
e)11

Ans a) 2????

[amitnsitian]

Originally Posted by anjinsan

Question : what is the greatest prime factor of 2 to the power of 28 substracted from 4 to the power of 17?

a)2
b)3
c)5
d)7
e)11

is the answer 7??

[Keya]

Hi Anjinsan

The answer would be 7. Here's why:
4**17 - 2**28
= 2**(2x17) - 2**28
= 2**28(2**6 - 1)
= 2**28(64-1)
= 2**28(63)
=(2**28 )x 7x3x3

Now, the SMALLEST prime factor would be 2, but the largest would be 7.
I think you picked the smallest by mistake, Anjinsan..

I have a question of my own:

h(x) is a function of an EVEN NUMBER x such that h(x) is the PRODUCT of all EVEN numbers from 2 to x, inclusive.
The largest prime factor of h(100) +1 is:
1. Between 0 and 10
2. Between 10 and 20
3. Between 20 and 30
4. Between 30 and 40
5. Greater than 40

I went through all the mistakes I made in my Quant test today, and was able to do all the others except this one. Which shows that my old nemesis 'Panic' was the cause of my Quant downfall today.

If anyone can please post the solution to this question, I'd be really greatfull.... Calling all the GMAT biggies.... please pitch in, guys.

Keya

[cybericy]

Originally Posted by amitnsitian

is the answer 7??

I think it should be 7 as well:

4^17 - 2^28
=2^34 - 2^28
=2^28 * (2^6 - 1)
=2^28 *(63)
=2^28 * (7 * 3^2)

What's the right ans ?

[anjinsan]

the answer is 7.

i just dont understand how you can get to 2^28 * (2^6 - 1) from 2^34 - 2^28 ???

i just dont know a certain rule i guess. can you please explain the rule briefly.

anjinsan