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Quiz Results (Posted on 2004-09-02) Difficulty: 3 of 5
Five students each answered five questions on an quiz consisting of two multiple-choice questions (A, B or C) and three True-False questions. They answered the questions as follows:
Student Q1 Q2 Q3 Q4 Q5 
Alex    A  A  T  T  T 
Bert    B  B  T  F  T 
Carl    A  B  T  T  F 
Dave    B  C  T  T  F 
Eddy    C  A  F  T  T 
No two students got the same number of correct answers. Who got the most correct answers?

See The Solution Submitted by Brian Smith    
Rating: 3.2222 (9 votes)

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Solution ! :D | Comment 14 of 30 |
i think i got the ans correct or the question wrong :) lol
ans: Dave
now see try fitting this

You see no person would get full marks that will end up with same number of total marks hence their will be an ans patten that no one gave and if on one gave it then some one would get 0 Zero fell sorry for that guy all ready :) now in that case the question 3 - 5 cna't be more then 2 choises and all of them will have one or the other hence the diffrent ans will be in q1 or q2 or both hence if u spend 1.5 hours will be get that the solution of q1 & q2 is BC since now now i know dave gave it but hey a lot of others did not hence it's good now then in the q 3 - 5 a few situation ans are not given like all false or false true false or false false true or True false false.

Now
considering that we have is
q1 = B
q2 = C
q 3 - 5 changes
i.e the possible ans for q 3 - 5 given above are taken one by one
then at the end or last possible ans that is True False False

now we have
q1 = B
q2 = C
q3 = True
q4 = False
q5 = False

then

NC = Not Correct
C = Correct
--------------------------------------------------------------------------+
Name  |  q1      |   q2      |   q3     |    q4       |   q5      |     Total |
-------------------------------------------------------------------------- |
Alex      A(NC)      A(NC)    T(C)        T(NC)      T(NC)             1 |
---------------------------------------------------------------------------|
Bert       B(C)       B(NC)    T(C)        F(C)        T(NC)             3  |
---------------------------------------------------------------------------|
Carl       A(NC)     B(NC)    T(C)        T(NC)      F(C)               2  |
---------------------------------------------------------------------------|
Dave     B(C)       C(C)      T(C)         T(NC)     F(C)               4  |
---------------------------------------------------------------------------|
Eddy     C(NC)     A(NC)     F(NC)       T(NC)     T(NC)            0   |
---------------------------------------------------------------------------|
Avg.                                                                                       |
correct   0.4       0.2            0.8            0.2        0.4             1.8 |
question                                                                                 |
--------------------------------------------------------------------------+


hence
i founded by trying posibility that if no one got 5 marks that's the highest then some one should get 0 zero else we have 4 possible ans which are differen from each other but if we have 4 ans and 5 people some one will get same marks hence some one should get zero 0 or it's won't work :)

Well this is just my opinion and i am new ok :)

i think i got it right !
so please post the solution i am dieing to see if i am right or not :D

  Posted by Ethen Hunt on 2004-09-10 06:42:47
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