Recent content by shhrewd

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    Really Hard Math Riddle?

    Ah. This is a classic. I hope you are familiar with mods. If not, here's a general idea x = a mod b x/b yields a remainder of a. x = 9 mod 10 = -1 mod 10 x = 8 mod 9 = - 1 mod 9 x = 7 mod 8 = - 1 mod 8 ... x = 1 mod 2 = - 1 mod 2 Now, if we find the LCM of (2,3,4...9,10) - 1, thats our...
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    Kristi jogged for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for

    3/5 + 1/2 + 3/4 Common denominator = 20 3/5 = 12/20 1/2 = 10/20 3/4 = 15/20 12/20 + 10/20 + 15/20 37/20 1 17/20 h Answer B
  3. S

    Kristi jogged for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for

    3/5 + 1/2 + 3/4 Common denominator = 20 3/5 = 12/20 1/2 = 10/20 3/4 = 15/20 12/20 + 10/20 + 15/20 37/20 1 17/20 h Answer B
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    another maths riddle, anyone welcome to try and solve.?

    This is my guess after attempting to work it out on paper. 1st: Fish 2nd: Cheese 3rd: Apple Dumplings 4th: Ham Sadly, I know wed, thurs for sure I know monday and friday are interchangeable. I'm still not sure about Tuesday though. I would love to see how you can prove what Tuesday is. It...
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