Erik Reuter wrote: > >> The problem: Natalia had to answer a question that was more or >> less like this: 4 friends travelled and one remained in Rio de >> Janeiro. They measured the air pressure, and got Adriana: 77 cm >> Hg (sic), Beatriz: 76 cm Hg, Carla: 75 cm Hg, Daniela: 65 cm Hg, >> Emilia: 84 cm Hg (sic). Which one remained in Rio? >> >> The desired answer was Beatriz, but she answered Adriana. And I want >> to prove that Rio has _more_ days with 77 than 76 cm Hg :-) > > That's an odd question as written. > Yep. Specially because the 84 cm Hg is impossible.
> Was there any information about where > they traveled to? > No. > Also, I'm not familiar with the geography of Rio. I > know it has beaches, but are there also some high areas (I remember some > pictures, but not sure if it was Rio)? > Yes, two tourist points at 300 and 500 meters (sort of). > Did 3 of the choices really go > 75cm, 76cm, 77cm, that close together? > Yes. Evil Teacher, isn't she? > The textbooks give 760mmHg as > standard pressure at sea-level (but of course it varies), is that what > they were getting at? > Yes. > If so, that isn't a very good science question, > more of rote learning. > Yes - and unfortunately now that I have the table I can see that Rio pressure varies within 5 mmHg around the 760. Curiously, it's bigger in Winter than in Summer [I would imagine the reverse]. > Can you give some more details about this test? > I gave all information that it had. Of course, it's just 0.5 point in 10, but it might mean _much_ because that's the margin that she needs to pass without the need of a final test [else she will have to do a final test requiring 3.2 out of 10] Alberto Monteiro _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
