Hi Piyapun
Can ia sk you about your gmat score and work exp?
I wanted to apply to duke for health sector but my gmat is low so I am wondering if at all I should spend time.
there are very few good programs for health sector.

Thanks

Congratulations. will wait for your strategy which helped to get this leap. I also appreciate your thoughtfulness about giving your gmat material to those who can not afford it. hope you find the right person.

sibling probability

In a room filled with 7 people, 4 people have exactly 1 sibling in the room and 3 people have exactly 2 siblings in the room. If two individuals are selected from the room at random, what is the probability that those two individuals are NOT siblings? (a) 5/21 (B) 3/7 (C) 4/7 (D) 5/7 (E) 16/21

Advice- Gmat prep test-570

Hi All, Today i took GMAT prep test Results in detail- total 570 Q- 41 V 28 surprisingly, Q and V score doesn't reflect my actual performance on individual section. Quant- 21/37 Incorrcet. 6/ first 10 Q incorrect. verbal- 13/41 incorrect. i'm surprised if i did 21 incorrect than how come Q went to 4...

Thanks for the explanation.
OA is E

now I understand why do we need upper limit too to find least value..

OA is C
could you pls break the first statement and describe how did you arrive at x=1/3
is it is
(x+1)=2(x-1), I get x=3 and not 1/3

thanks

melting ice-rising water

Possible long-term consequences of the “greenhouse effect,?the gradual warming of the Earth’s climate, may include melting the polar ice caps and a rising sea level. A.may include melting the polar ice caps and a rising sea level B.may include the melting of polar ice caps and the rising sea lev...

absolute confusion

Is �x�< 1?


(1) �!x + 1!� = 2�!x - 1!�
(2) �!x - 3!� ≠ 0

! is used to denote abolute value bar.