Sandy Wood
Brain Game: This Class Stinks
by Sandy Wood - March 31, 2009 - 7:30 AM

THE SOLUTION:

Ham scored the A, followed by Pam with the B, Sam with the C, Tam with the D, and Cam failed with the E.

One possible logic sequence:

Clue #1: Skip for now.

Clue #2: Cam <> A or B, Sam <> A or F, and Pam <> D or E.

Clue #3: Either Pam = A and Tam = E, or Pam = B and Tam = D.

But Tam = E does not work, since (refer to Clue 1) that would mean that no boy scored the C, and one of them had to.

So Pam = B and Tam = D, forcing Ham = A, which forces Cam = E and then Sam = C.

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Comments (6)

  1. That was a fun easy one.

    I think clue #3 should say Tam = D, not C

    posted by craig on 3-31-2009 at 8:19 am

  2. Got it! I love those.

    posted by ErinInHouston on 3-31-2009 at 8:32 am

  3. Got it. But shouldn’t the answer be that Cam got an E, or change the grade in the question to an F?

    posted by David on 3-31-2009 at 9:07 am

  4. Yes, it should… I originally had the grades as A, B, C, D and F (like they were in most schools) but then realized that the letter-skip might confuse some. I forgot to change F to E in the answer, though. All fixed! Thanks!

    posted by Sandy Wood on 3-31-2009 at 9:31 am

  5. You don’t need to skip the first clue.

    Based on clue 1, you can say that Pam A, C or E. Same for Tam. That leaves the girls getting the B or the D. Clue 2 says that Pam should get the B since her grade is better than 2 of the boys.

    posted by Steve on 3-31-2009 at 10:39 am

  6. I absolutely LOVE puzzles of this type. Bring ‘em on!

    posted by frodopal on 3-31-2009 at 2:58 pm

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