the missing pound
By ripley84
@ripley84 (34)
Philippines
May 2, 2007 7:57am CST
this was shown in an episode in discovery channel's "million to one" let me check if it really is that hard...
You and two other buddies go out and eat in a restaurant. After the meal, the bill was given by the waiter and the total
cost is 25 pounds. So each of you took out 10 pounds each, making a total of 30 pounds.
The change of 5 pounds was returned to your table. In order to make the division a little easier, you all decide to take 1 pound each, leaving 2 pounds to be given as a tip.
Now, looking back, after you took 1 pound each, that makes your contributions 9 pound each (10-1), totaling 27 pounds (9x3). now that you total 27 pounds and if you add the 2 pounds as tip, the total is 29 pounds! you have one pound missing, where is it?
it took me two days to figure this one on my own. let's see your answers!
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1 response
@lecanis (16647)
• Murfreesboro, Tennessee
2 May 07
But I have the general idea. There isn't really a pound missing here, it's just in the way you're adding it. You could say the meal was 25, the tip was 2, and your group took 3 back, and that adds up to the 30. If you're counting each person gave 27, and the tip was 2, that's 29. So it looks like a pound is missing, but that's only because you should have been adding the 3 you took back instead of the 2 tip which was already included in that 27.
Unless there's some kind of silly trite answer like that I'm missing here?
@ripley84 (34)
• Philippines
2 May 07
there you go! the simpler explanation, at least to me, is that you just neglect the 30. the total is now 29, not 30, after each got 1 pound change. it was misleading because i kept adding 2 to 27, and expect the answer to be 30. nice job. gosh, my mind needs to work out!
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