Im tired too ._.

my tired is de mentally tired ==

im phsyically tired ._.

wait , im both physically and mentally tired

._.

Haha

everyone is tired...

rest well tonight SL

haha , thankks ^^

btw, u know huiying from our class?

duh

U WANT HER NUM ISIT ?

lol y suddenly u type caps

tot u angry sia

LOL . i nt angry uhs . u like her uhs ?

no X_X nvm...

n u know how do E9 Qns 14?

the key to solving is to get the equation correct

and i can't get the correct equation

LOL . i cn guess de eqn . but de ans sibeh long

my equation was: let x be the average speed

x + 5 = (100/x) = 10

- 10 (not =)

no ?

but i suddenly realize

(100/x+5) - (100/x) = 100

** 10/60

5 is km/h but 10 is minutes

uncle

dist ovr time = speed

dist of speed = time

holy crap, i suddenly rmb mr sng say must use pri sch method

k later i try solving

tys SL

==

i gg liao la =.= still cannot solve

no wonder =.= i must let y be the original time taken

i'm tired EVERYDAY

LOL