GMAT Question of the Day : Data Sufficiency

GOPI
#1. November 19th, 2006, at 7:11 PM.

a OR NOTHING

AP
#2. April 15th, 2007, at 2:04 PM.

E

DiD
#3. April 15th, 2007, at 5:07 PM.

E

faraz
#4. April 12th, 2008, at 12:37 PM.

help… i see question marks in the question.. does that mean a + or a - or a * or / ?

2x ? 2k = 4

Shashwat
#5. April 12th, 2008, at 3:09 PM.

If the missing operator is + or -, the question becomes a simult.eqn, and can be answered.
If its “/” then each can be sufficient to answer, x>k
if its “X” then its not possible to answer
if its “mod” operator then x

Dharm
#6. April 13th, 2008, at 6:37 AM.

Answer should be option E

Ritula
#7. April 28th, 2008, at 4:04 PM.

Answer should be C.

kv
#8. April 28th, 2008, at 6:52 PM.

c

equation with 2 variables

nidhi
#9. May 1st, 2008, at 11:05 PM.

m totally agree wd shashwat

shivani
#10. May 8th, 2008, at 9:16 AM.

c needs two equations since have two variablees

Anu
#11. May 12th, 2008, at 2:17 PM.

E
Can takegmat team explain the answer..what is the right answer

Pieter
#12. September 2nd, 2008, at 1:56 AM.

fix the questionmarks first!

Aditya
#13. September 2nd, 2008, at 6:42 PM.

A

parvez
#14. September 2nd, 2008, at 7:23 PM.

Can somebody explain the question ???

shilpa
#15. September 2nd, 2008, at 9:27 PM.

A

Deepak
#16. September 2nd, 2008, at 10:22 PM.

I feel it should be A
Reason:
2x>2k=4=>x>k=2
9x>3k=81=>3x>k=27

Replace the > sign with some + or -. How would you have reacted to the equation?

nitin
#17. September 2nd, 2008, at 10:44 PM.

A

nitin
#18. September 2nd, 2008, at 11:00 PM.

Reason:

The first equation explicitly states that x is greater than K
2x>2k=4
or (x “>” K) =2

The second equation says:
9x > 3k = 81
or 3x > k = 27
If you were to replace x with a number that is smaller than 27 say 10 or a number that is bigger than 27 say 30, both cases would give you a higher value for 3x than 27.
Therefore, statement 2 alone is not sufficient to answer whether X is greater than K

duke
#19. September 3rd, 2008, at 2:43 AM.

what if x is negative and K is postive. A will not be sufficient

Patty
#20. September 3rd, 2008, at 9:04 AM.

Are the actual answers listed somewhere?

Rami Reddy
#21. September 3rd, 2008, at 6:35 PM.

C is the correct.
x =12.5 and k= 10.5

Rajib
#22. September 3rd, 2008, at 7:20 PM.

Can someone correct the question ?

jaspreet
#23. September 3rd, 2008, at 11:13 PM.

please provide correct answer

kapil
#24. September 4th, 2008, at 12:06 AM.

A
same reason as given by nitin

aroratheneo
#25. September 4th, 2008, at 12:17 AM.

As per me answer is A.

Kaushik
#26. September 4th, 2008, at 11:27 AM.

Answer A is correct

Option 1) explicitly states that x>K
Option 2) states that 3x>k=27 after simplification
It holds true for any value of X>9
For 9<x<26, x27 x>k
So it is inconclusive.

bharath
#27. September 4th, 2008, at 11:54 AM.

from statement 1
k=2,and 2x>2 and hence x>1
k=2

hence statement 1 not sufficient

Sandeep
#28. September 4th, 2008, at 11:55 AM.

A
Because x>k=2
Here one thing for sure v can make out is x>k.
And it ds nt matter if k or x are = 2.
So the answer is A

Basant
#29. September 4th, 2008, at 7:59 PM.

A

Richa
#30. September 5th, 2008, at 6:21 PM.

please provide with the correct answer…

nothimpossible
#31. September 6th, 2008, at 3:14 AM.

A