##### 19 karma
###### GMATGMAT aspirants at Hyderabad - Study Group

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

###### GMATGMAT Problem Solving Discussions
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
###### GMATGMAT Problem Solving Discussions
Hi ,

check these!

For the second doc....

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

Regards
###### GMATGMAT Problem Solving Discussions
Hi ,

check these!

Hi Jishnu,

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

Regards
###### GMATGMAT Problem Solving Discussions

Is the positive integer r an even prime number?

(1) r is a prime number
(2) 3
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
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
###### GMATGMAT Problem Solving Discussions
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
Do quote on this.

Inputs are appreciated

Cheers

Common Bro...The statement in B just tells u that 3
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
###### GMATGMAT Problem Solving Discussions
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 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
Regards

Correct me if i was wrong.......
###### GMATGMAT Sentence Correction Discussions
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
###### GMATGMAT Sentence Correction Discussions
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