Re: [conan] My second Q
> Hi,The way to solve it is to say:
> My friend gave me a math question, which looks like
> impossible to be solved. Here it is:
> One day, Ayumi, Genta, Mitshushiko bought snacks.
> Conan didn't bring money. Their snacks' cost are 250
> yen. Ayumi, Genta, and Mitsushiko only had 100 each of
> them, so they paid (100,100, and 100, total = 300).
> 300-250 = 50. So the shop owner had to return 50.
> Since there are 3 buyers, returned 10 to respectively
> to Ayumi, Genta, and Mitsushiko, and remained 20.
> Mitsushiko had strange feeling. Since each of them got
> 10 back, then it was likely they only paid 90 each of
> them. 90+90+90 = 270. And 270 added with the remained
> 20, so the total was 270+20=290. Where was the last 10
> yen ? Seeing this Conan wanted to laugh. Do you knew
> where was the last 10 yen ?
270 yen has the shop owner (snacks + 20 kept)
30 yen he returned to the boys
300 yen -nothing's missing-
Think, if the boys had paid 90 each (270), the change would have been of 20
yen, (those the shop owner kept), and they would have each had 10 yen
remainig (30 yen). That's 300 yen.