at a university...

four students got
an A in 1 subject..
so dey decided 2
go party with
friends.. they slept
all sunday &
decided not 2 take
d final exam on
monday & dat dey
wud give d same
reason: d car they
rode on had a flat
tire.. the profesor
accptd their xcuse
& scheduled them d
following day at 4
difrent rums.. they
all got d 1st
question worth 5
pts.. & on the 2nd
page was written..

for 95 pts: which
tire was flat?...