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In an exam, there are certain min. marks to be scored in

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Director
Joined: 01 Feb 2003
Posts: 844
In an exam, there are certain min. marks to be scored in [#permalink]

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07 Jul 2004, 12:33
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In an exam, there are certain min. marks to be scored in each of the papers. In how many ways can a student fail?
(1) The exam has 6 papers
(2) The student passes if he scores more than min. required in atleast 4 papers
Director
Joined: 05 May 2004
Posts: 574
Location: San Jose, CA

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07 Jul 2004, 13:27
C

both 1&2 together solves the problem
Director
Joined: 01 Feb 2003
Posts: 844

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07 Jul 2004, 13:48
Shall post the answer tomorrow, so that people get an opp. to answer
Director
Joined: 05 Jul 2004
Posts: 894

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08 Jul 2004, 02:46
(C)
Both are required to find the solution.

Please comment on my solution (whether it is correct):

Failed in 1 Subject : 6C1
Failed in 2 Subjects: 6C2
Failed in 3 SUbjects: 6C3

Total Number of ways a student can fail = 6C1 + 6C2 + 6C3
Director
Joined: 01 Feb 2003
Posts: 844

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08 Jul 2004, 09:46
That was a easy one!
08 Jul 2004, 09:46
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