splodgeyAl Posted March 6, 2012 Share Posted March 6, 2012 It's been shown here that the question was wrong! Either way, whosoever is struggling with it have only got a primary understanding of basic maths (or worse!). The question is only wrong in so far as it, sensibly, should have asked for the weight of the other unknown parcel, which meant extraneous information was provided in the question. However, a natural by-product of working out the weight of one of the unknown parcels is that you then know the weight of the other Link to comment Share on other sites More sharing options...
spooky3 Posted March 6, 2012 Share Posted March 6, 2012 The question is only wrong in so far as it, sensibly, should have asked for the weight of the other unknown parcel, which meant extraneous information was provided in the question. However, a natural by-product of working out the weight of one of the unknown parcels is that you then know the weight of the other Can we have a question involving pulleys next please? Or would this be the next logical step? http://en.wikipedia.org/wiki/Simultaneous_equations Link to comment Share on other sites More sharing options...
SiSiSi Posted March 6, 2012 Share Posted March 6, 2012 Question isn't wrong, although my first attempt at it was! I gave the value of B. If A+B+C=800 and A=250 then 250+150=400 ie. C=400. Link to comment Share on other sites More sharing options...
spooky3 Posted March 6, 2012 Share Posted March 6, 2012 Question isn't wrong, although my first attempt at it was! I gave the value of B. If A+B+C=800 and A=250 then 250+150=400 ie. C=400. Re-read the thread, it was wrong! Also you're missing a bit in your equation! Link to comment Share on other sites More sharing options...
SiSiSi Posted March 6, 2012 Share Posted March 6, 2012 Re-read the thread, it was wrong! Also you're missing a bit in your equation! Please explain what what was wrong. Link to comment Share on other sites More sharing options...
spooky3 Posted March 6, 2012 Share Posted March 6, 2012 Please explain what what was wrong. You left out this bit: Parcels A and B together weigh the same as parcel C As to the question being wrong: Just found this page: http://www.thatquiz.org/tq/previewtest?L/T/F/X/02731308937894 The question is on there, but asking for the weight of parcel B, not C Which makes sense. Link to comment Share on other sites More sharing options...
SiSiSi Posted March 6, 2012 Share Posted March 6, 2012 Question isn't wrong, although my first attempt at it was! I gave the value of B. If A+B+C=800 and A=250 then 250+150=400 ie. C=400. No I didn't. Link to comment Share on other sites More sharing options...
splodgeyAl Posted March 6, 2012 Share Posted March 6, 2012 You left out this bit: As to the question being wrong: Which makes sense. But as there are only 3 parcels, you know the weight of one and the total of the three. One would have to be spectacularly daft to calculate B but not know C. The relevance of which one actually is the answer, only matters if the question is going to be marked, and that mark means something significant in your life, surely? Link to comment Share on other sites More sharing options...
SiSiSi Posted March 6, 2012 Share Posted March 6, 2012 But as there are only 3 parcels, you know the weight of one and the total of the three. One would have to be spectacularly daft to calculate B but not know C. The relevance of which one actually is the answer, only matters if the question is going to be marked, and that mark means something significant in your life, surely? So am I right or wrong? Link to comment Share on other sites More sharing options...
spooky3 Posted March 6, 2012 Share Posted March 6, 2012 But as there are only 3 parcels, you know the weight of one and the total of the three. One would have to be spectacularly daft to calculate B but not know C. The relevance of which one actually is the answer, only matters if the question is going to be marked, and that mark means something significant in your life, surely? The superfluous information indicates to many that the question was obviously wrong in some way, this was then shown to be the case. In the OP's example, you don't need to know the weight of A to work out the answer of C, but for B you need to know A. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.