# Ok, my prof is at it again. This time it's an impossible math riddle problem...

Discussion in 'After Hours Lounge (Off Topic)' started by Jonny K, Apr 10, 2003.

1. ### Mark Zimmer Producer

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2. ### Brian Kleinke Supporting Actor

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I suppose it's a good thing your Math prof isn't a Home Theater Buff

3. ### TimDoss Second Unit

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Nevermind... I see it now, we don't need to have the house
number... you were *cough* right *cough*.

4. ### Brian Perry Cinematographer

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I was okay with BrianW's explanation, but then Cees said:

5. ### Cees Alons Moderator Moderator

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BrianW,

:b

And thanks for the kind words!

Brian P,

No, you don't need to have it (the value itself of the housenumber) to find the solution - which will then also reveal that number to you, of course!

Cees

6. ### BrianW Cinematographer

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7. ### Cees Alons Moderator Moderator

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BrianW,

You just did an excellent one-liner there yourself!

Cees

8. ### Morgan Jolley Lead Actor

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Anyone got any more math-based puzzles?

9. ### Artur Meinild Screenwriter

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10. ### Wayne Bundrick Cinematographer

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Wait a second.

Let's assume the house number is 120. There are three combinations that make a product of 120:
2,3,4,5; sum = 14
1,3,5,8; sum = 17
1,4,5,6; sum = 16

Everyone's thinking that Jane needed to know the smallest number before she could figure it out. That's not true. The above combinations have different sums. If Jane counts the number of children then she would know which combination is correct. We have to assume that Jane can count them if we are to also assume that she knows her friend's house number.

Also, it seems to me that Jane would already know how many children her friend has, and that would also be a clue.

11. ### BrianW Cinematographer

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12. ### Sebastian Second Unit

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The reason why I thought the answer had to be negative was because I just figured that she lived on an odd St and that is why we needed to know the house #. All the other combo's multiply to positive answers.
However, she does just ask one question and then she knows the answer and if my answer was correct than she would not need to know the answer to "could you tell me if you cousin's family has only one child?".
So BrianW is the whiz on this one or whoever answered it first. You ah smart boy!
Anyway that is why I guessed what I did.

13. ### Khoa Tran Supporting Actor

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All this talking about Jane, i wanna know what she looks like!!

14. ### Jonny K Second Unit

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Hahaha.

Mmmmm....Jane

Jonny K.

15. ### Morgan Jolley Lead Actor

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I have question.

The house number is the result of multiplying the amounts of people in each of the 4 families, not just children, correct? If that is so, then the minimum amount of members in a family could be 3 (we must assume father, mother, and at least 1 child, or else there couldn't be a child from that family playing in the group). So then the smallest values would be 3, 4, 5, and 6, which add up to 19 and multiply to 360. Are we allowed to assume some families don't have both parents?

16. ### Jonny K Second Unit

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I don't know. All the info I have is exactly what I put in the first post.

Jonny K.

17. ### Cees Alons Moderator Moderator

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No, no, no, I have to defend Jane here.

She couldn't count all those playing kids (perhaps some were at the back of the house). Again we have a clue here: otherwise the friend wouldn't have felt a need to say that she couldn't form a baseball team with them.

Or else, the text would have been: "Hmmm, said Jane, but there aren't enough to form a baseball team", also indicating that Jane knew the number - and thus giving us an important clue in a different type of puzzle.

Her (lack) of knowledge about the number of kids of her friend is perhaps a blame on her though... but not on her mathematical skills.

Cees

18. ### Glenn Overholt Producer

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If I went to someone's house and they started rattling off some garbage about the product and the house number, I'd quicky say, Bye bye, I'm out of here!

Glenn

19. ### Cees Alons Moderator Moderator

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Yes Glenn, but that's because you're not a - what's the male form of Jane? - a Janius!

Cees

20. ### Joseph DeMartino Lead Actor

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