What's the fastest way to do these math problems?

cjgone
Tue, 04 Aug 2009 22:42:09 +0000

for the a\b one, I converted that to a fraction, 5\8. So I know that a and b are always integers, so that means that they’re mutiples of 5 and 8.

So I did 5x+8x = 999, got x = 76.84, rounded that to a whole number 76. 76*8 = 608

[edit]not 1000, 999, still worked in this case, but this is almost always why I get questions wrong. Misread the less then sign.