Hi,

Any info about how good is CSquare in Hyderabad. I have heard it is one of the top institutes in Bangalore. Could anyone put more details about faculty and other stuff...

Regards
Madhav

When a certain tree was first planted,it was 4 ft tall. each year the height increased by a constant amount. at the end of the 6th year, the tree was 1/5 taller than it was at the end of 4th year. by how many feet did the height of the tree increase each year?
1) 3/10
2) 2/5
3) 1/2
4) 2/3
5) 6/5

assuming k as the constant increase..doesnt it lead to 4+5k = 1/5(4+3k) + (4+3k) ?

hi vinod,

since the height increased by a constant amount ....let say k..

so at the end of 1st yr the height will be 4+k

similarly end of 6th yr will be 4+6k and 4th yr will be 4+4k

given that end of 6th yr = 1/5th taller than it was at end of 4th yr.....

==> 4+6k = 4+4k+ 1/5(4+4k)
4+6k = 6/5(4+4k)

solving k = 2/3

...so tree increased by 2/3

correct me if i was wrong

Regards
Madhav

Hi ,

check these!

For the second doc....

4. D
5. I am not sure..but i think it should be D

Regards
Madhav

Hi ,

check these!

Hi Jishnu,

Answers for the 1st doc are
1.c
2.c
3.a

please conform the OA's

Regards
Madhav

Hi Madhav, thought of clearing your confusion. Answer is indeed B.

Is the positive integer r an even prime number?

(1) r is a prime number
(2) 3 < r < 26

In this question, with the FS 1, it says r is a prime no. There are many prime nos and only 1 is even among all. i.e 2. So the FS1 is does not justify it. i.e when you say, 2, it is an even prime no. Justifies. When you say, 3, it is an odd prime no. Does not Justify. Here the answer becomes inconsistent. i.e first we get Yes for even for 1 prime and No for odd for other primes. Hence info is inconsistent. That eliminates A & D.

FS2 says, 3<26. Remember that we are asked to find out whether there are any EVEN PRIME NUMBERS between 3 & 26. We are not asked to PROVE whether there is indeed any EVEN PRIME NO.

Take 5, it is odd prime no and it's not even.
Take 7, it is odd prime no and not even.
Take 11, odd and not even.
.
.
.
.
.Take 23, odd and not even.

Here we are getting all the answers as NO. So the data is sufficient.
Hence the answer is B and not C.

Always remember in GMAT DS Q's, they don't ask us to PROVE the statement, rather they ask us to find out.

Hope this analysis helps.

Cheers

Hi red Hauster,

If you see the question pasted by alchemist mba in his original post....

Its "Is the positive integer r an even number?" and not

" Is the positive integer r an even prime number?"

If the question is the one which you typed then i will surely agree with your answer...

Just chk it once Bro...
Correct me if i was wrong....

Regards
Madhav

The answer to this whether r is even prime or not is B. We are asked not to prove whether "r" is even or not rather we have to find out "r" is actually prime or not. Fact Statement 2 says 3<26 i.e there are no even primes between 3 and 26. Hence, the answer to this is B and not C.

Do quote on this.

Inputs are appreciated

Cheers

Common Bro...The statement in B just tells u that 3 < r < 26...From the problem we know that r is a positive number....

We need to prove whether r is an even number....

we have even numbers from 4 to 24 that can be r......

So B cant be the answer.............

From A we just know that r is a prime number....

If you consider A ..then r can be 2,3 or any prime number....

A doesnt help because r can be 2 or any other prime number....So we cant judge r by only A ....

If you consider A & B..

we know that r is a even prime that is in between 3 & 26....Hence we know that answer for " Is the positive integer r an even number? " as NO...

I typed it fast ....I hope it helps..

regards
Madhav

Last month 15 homes were sold in town X. The average sale price of teh homes was $ 150,000 and the median sales price was $130,000. Which of the following must be true?
I. At least one of the homes was sold for more than $165,000
II._____________________________ more than $130,000 and less than $150,000.
III. _____________________________ less than $130,000.

A.I only
B.II only
C. III only
D. I and II
E. I and III

To make it simple.....

since the median of the 15 values is 13,000 and mean of 15 values is 15,000....

x be the individual value of 1st 7 values <=13000
y be the individual value of last 7 values > 13000

for reducing the complexity i hv taken the first 7 values commonly as x and same with last values as y

==> (7x + 13000 + 7y) = 15*15000
7x+7y = 2,12,000
x+y = 30,300 (approx)

To calculate min value of Y ....take the Max value of x is 13000...
==> y = 17,300 ( Min value of last 7 values)

Hence we get I as the minimum answer.......

By using the same equations written above....since we havent used any value that is either <13000 or in between 13000 and 15000...I & II cannot be compulsary conditions....hence can be eliminated.........

Regards
Madhav

Correct me if i was wrong.......

ankitgarg20 Says

I beg to differ from you...according to "MGMAT", different from and differ from,both are correct usages. Untill of course, you didnt mean Manhattan GMAT by saying MGMAT

Hi Ankit,
You don't need to beg for that .....Its not Manhattan GMAT...but i got the source from "MR-Sentence-Correction-Guide" ..MR for Manhattan Review and i got this file from esnips.......I posted the exact text in the above post...

Thanks
Madhav

ashishjha100 Says

'Different from' is the correct usage not 'Different that'.......

Please refer to MR-Sentence correction Guide Page No 65....
It states that "Although strict grammarians say that from is the correct word to use after different, many authorities believe that than may be used in order to avoid elaborate constructions. In contrast, the authorities agree that from is the correct word when used with differ"

Regards
Madhav

ankitgarg20 Says

Option E also compares the two things correctly. Why is "different" usage is correct and "differs from" is wrong?

hi Ankit,

I was just trying to reason for the correct answer which ashish posted... ...
My apologies for that...and regarding answer...

If you see my post where i mentioned my answers....you will come to know that ..i all chose E......because..."Different than " is idiomatic than different from ...according to MGMAT SC. ....and "that of any terrestrial lava's " is correct rather than "that of any terrestrial lava"...here lava's should be plural right...

Regards
Madhav