GMAT Question of the Day :Data Sufficiency

inderkalra
#1. November 2nd, 2006, at 8:14 PM.

ans (C)

n = 10 and K is less han that

so its 6, k, 10 (n), 12, 17

V Pat
#2. November 2nd, 2006, at 8:46 PM.

C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

list = 6,k,10,12,17

Milind
#3. November 3rd, 2006, at 8:47 PM.

C

Nrip Nihalani
#4. January 28th, 2007, at 4:53 PM.

C

gks80
#5. January 29th, 2007, at 9:36 AM.

C

Yogi
#6. March 20th, 2007, at 12:16 PM.

I think the answer should be E.

Since median(avg of 5 numbers) = 10

(k+n+12+6+7) / 5 = 10
(k+n+12+6+7)=50
hence, N+k=25

Now stmt 1 says n>k, this doesnt give values of n & k

Also only stmt 2 doesnt give value of n, it only says that the median is 10, i.e. Average of 5 numbers is 10

considering both statements also we cannot assume any value for n & k hence cannot determine value of n.

pal
#7. March 20th, 2007, at 2:19 PM.

C

pal
#8. March 20th, 2007, at 2:20 PM.

median n average are different…

Akanksha
#9. March 21st, 2007, at 9:28 AM.

I think answer is “C”… C) BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
becoz by statement 1 alone we can find out the relation between k & n but not the exact value of n….
Similarly with the statement 2…
but when we combine both the statements it gives value of n as 10

Where can I find correct answer of the questions asked by Admin???????

Abhinav
#10. March 21st, 2007, at 4:12 PM.

c

Now from statement 2 we know that the median is 10 which means that 6 X 10 12 17 is the list which indicates that the number X has to be less than 10. Now if we look at statement one we know that k

AP
#11. May 8th, 2007, at 12:49 AM.

c

jaspreet
#12. March 20th, 2008, at 4:45 AM.

MEDIUM = 10
either k or n= 10
but k

jaspreet
#13. March 20th, 2008, at 4:46 AM.

but K

Deeks
#14. March 20th, 2008, at 9:37 PM.

C

Vamsi Krishna Kanuri
#15. August 28th, 2008, at 10:20 AM.

C

saritha
#16. August 28th, 2008, at 2:51 PM.

c

Joy
#17. August 28th, 2008, at 6:36 PM.

The list is - 6, k, n, 12, 17
Now K and n can be placed anywhere in the list. If we go with stmt-1, k < n so this is confirmed that k will precede n in the list.
Again as median is 10, so it is confirmed that either k or n has to be 10. But if k = 10, then there is no place to put n in the list becasue the list is coming like - 6, …, 10, …, 12, …, 17, …
Combining both options, it is sure that n has to be 10. So answer is C.

jaspreet
#18. August 28th, 2008, at 9:24 PM.

Answer is C

jaspreet
#19. August 28th, 2008, at 9:25 PM.

n = 10

A Chakraverty
#20. August 28th, 2008, at 11:02 PM.

C
Both statements are required to answer the ques.

2. gives the value of median, and thus the set of numbers should be arranged in ascending or descending order; third term will be median
1. Since k<n, therefore, n=10

shilpa
#21. August 29th, 2008, at 8:42 AM.

c

Immanuel Ashok
#22. August 29th, 2008, at 9:21 AM.

Yes C is the correct answer!

rajeev dogra
#23. August 29th, 2008, at 11:02 AM.

ANS C

we can write

6,k,n,12,17

in these five terms n will be median because k<n

also it is given that median is 10 so n=10

hence correct answer is C

Basant
#24. August 29th, 2008, at 1:42 PM.

yeah ppl… C is correct..

Deepak
#25. August 29th, 2008, at 9:50 PM.

E

kapil
#26. August 30th, 2008, at 9:10 AM.

C

peeps
#27. August 30th, 2008, at 11:07 PM.

condition 1 tells us nothing about n, so A and D are out.

condition 2 is more helpful, but not on its own, since either k or n could be the median. Condition 1 forces us to set n = 1 so this leaves us with 2 possible lists:

k 6 10 12 17
or
6 k 10 12 17

either of which gives us n = 10.
Thus both together are sufficient, only.

peeps
#28. August 30th, 2008, at 11:12 PM.

correction “… forces us to set n = 10 ….”

shakya
#29. August 31st, 2008, at 4:38 PM.

c for me

shakya
#30. August 31st, 2008, at 4:40 PM.

to yogi,_they are asking about median not mean……..

nothimpossible
#31. September 6th, 2008, at 2:13 AM.

C