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MATH QUESTION OF THE DAY


Commissioner R wants to schedule a 2-hour meeting on Friday for herself and three other commissioners, S, T, and U. Is there a 2-hour period on Friday that is open for all four commissioners?

1. On Friday, commissioners R and S have an open period from 10:00 a.m. to 2:00 p.m.
2. On Friday, commissioner T has an open period from 11:00 a.m. to 1:00 p.m. and commissioner U has an open period from 8:00 a.m. to 12:00 p.m.

A. Statement (1) ALONE is sufficient but Statement (2) ALONE is not sufficient.
B. Statement (2) ALONE is sufficient but Statement (1) ALONE is not sufficient.
C. BOTH Statements TOGETHER are sufficient, but NEITHER Statement alone is sufficient.
D. Each Statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficie


 

 
 Submitted Answers
Student: 3/6/2010 2:57:42 AM
it's option B........
   
Student: 3/9/2010 6:23:08 PM
is the answer wrong?
I thought option B is enough since you can already tell from it that it is impossible to allocate 2 hours for U and T for the meeting
   
Student: 3/11/2010 9:12:28 AM
I agree I think B should be the correct answer.
   
Student: 3/22/2010 2:13:03 PM
Okay you have to in precise order for these questions

a) tells you 2 of the 4 could meet so it does not answer the questions about all 4 (so you can eliminate a, d)

b) tells you 1 person has 1 hour free and the other person has a different 2 hour opening for a meeting but because it does not reference the other two people it cannot answer the questions (eliminate b)

Now if you combine both A&B you see it answers the question: "can the 4 commuters meet for a meeting on Friday for 2 hours"

So, C is your answer.
   
Student: 4/17/2010 6:23:20 AM
the ans is B
   
Student: 6/10/2010 3:38:55 PM
C is your answer
   
Student: 6/22/2010 3:38:45 PM
Can someone please provide justification for the answer (option C). I think it should be option B since it is clearly evident that a 2-hr common window for all 4 commissioners is not available on Friday.

Regards
   
Student: 7/14/2010 6:42:02 PM
C is the correct response.
   
Student: 7/30/2010 11:49:17 AM
c
   
Student: 8/4/2010 2:32:18 PM
c
   
Student: 9/8/2010 3:38:04 PM
Option should be ;B

Statement B itself satisfies that between T & U meeting is possible between 11 to 12 which is 1 hr but meeting is needed to be scheduled for 2 hr so there is no need to check statement 1 coz meeting cannot be scheduled.
   
Student: 10/31/2010 3:39:44 AM
c
   
Student: 11/16/2010 12:29:12 PM
I think E is the right answer. The commissioners don't have two hours time.
   
Student: 11/16/2010 1:48:26 PM
b, as meeting has to be amongst 4 ppl.. and two of them cannot meet simultaneously for two hours.. so is clear...
statement 2 is sufficient..
   
Student: 1/9/2011 1:32:26 PM
B is the answer!
   
Student: 1/29/2011 7:31:27 AM
i thnk ,,i'll go wid same..
both a & b r nt alone r nt sufficient..
   
Student: 1/31/2011 4:03:39 AM
C is the answer
   
Student: 2/1/2011 2:15:47 PM
answer is C
because option 2 tells us only 1 hr i.e 11 to 12 but we need two hrs and option c tells us free hr as afetr 12 so the meeting cannot be scheduled
   
Student: 4/24/2011 6:12:55 PM
Answer should be C.

Question asks if all the 4 commissioners have time.
So have to look at statement A and B both.
   
Student: 5/29/2011 6:42:08 AM
C
   
Student: 5/29/2011 6:43:05 AM
C
   
Student: 5/30/2011 6:32:17 PM
e
   
Student: 5/30/2011 6:32:54 PM
e
   
Student: 6/22/2011 7:07:40 AM
IS THE ANS WRONG...BCZ U ALL READY ALLOCATED...S,T,U HAVE ONLY 2HR FREE SLOT...THEN HOW CAN U SAY ...THAT TIME
   
Student: 7/6/2011 3:51:38 PM
Is there a 2-hour period on Friday that is open for all four commissioners?
Yes. All the four have a 2 hr open period, each but does not match with open perios of one anothers.
A alone cannot answer and not enough.
B alone cannot answer and not enough.
But if we compare A & B, we can say that all the four have atleast 2 hrs of open period, but then they dont have a common 2 hrs open period. But this definitely answer the question-"Is there a 2-hour period on Friday that is open for all four commissioners?" and the answer is No.
So the answer for this is C.
   
Student: 2/13/2012 3:40:07 PM
B
   
Student: 2/13/2012 7:27:21 PM
Yea, definitely should be B. If you already know that T and U can't meet then you know that the meeting of 4 can't happen.
   
Student: 7/7/2012 1:58:09 AM
"Is there a 2-hour period on Friday that is open for all four commissioners?"

It's vague. While the common sense suggests that we look for a 2-hour period 'common' to all 4 commissioners, the question above doesn't ask for a 'common' 2-hr period open period. All it asks is whether all 4 commissioners have a 2-hour open period. With that, C is the answer.
   
 
    Answer

The correct answer is C.


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