because of too much exam blues...
we came out with some really dumb equations!
we did study during sep hols k! =D



the demand for study/mugging is highly elastic.
(i.e. MANY SUBSTITUTES)
Studying in school after 2pm = the law of diminishing marginal returns.



length of study time

*clearly...
not much brain is left for us to really think properly...
because this was what happened to one of us...
LOL.











one last remark from Tian Cheng that made me laughed.
haha.
"WE, PROCRASTINATORS UNITE!
tomorrow...."