4 ms·
I don't get why this is choice answers? In 4 and 5 you could just try out the answers one by one.
by jonsen 11y ago
I don't get why this is choice answers? In 4 and 5 you could just try out the answers one by one.
- thrownaway2424 11y agoI think that's by far the fastest way to solve #4. Seeing as how I didn't have a pencil, I wasn't inclined to solve the system algebraically. I just ruled out C&D for being too large, and figured it was B since C was only just barely too large, and A was clearly too small. I think this is a legitimate way to solve the problem and a useful problem as well. I'd be happy if I met more people who could estimate and guess at math solutions.
- DenisM 11y agoThere's some coverage of that in the "You must be joking, mr Feynman" book.
- deleted 11y ago[deleted]
- jchendy 11y agoAssuming students still take the SAT with pencil and paper, having multiple choice answers is the easiest way to implement automatic grading.