I ordered a venti java chips + grande ice green tea this morning.
its only $2.60
If i order only venti java chips ,
it costs me $2.70
thats why i love that cashier so much.
how it happened?
Oh well, I used 2 $2-off-coupons on 2 drinks
It suppose to have a function like this:
P = Max ( o , A- 2 )
where, P is the total payment for a drink
A = the actual cost of the drink.
She messed up! haha...
the green tea cost $1.85
Venti java chips cost $4.65
with the 2 coupons
the total payment :
P =( ($1.85 - $2) + ($4.60 - 2$) )*1.06
with tax
sien la...
I am not going to use the word NOOB.
reserved for lynn.
2 comments:
...
OMG ARBITRAGE
Nothing to say la.
Oh well, with duplication , u can have everything free by using this formula :
(1.85 - 2) n + 2.65 = 0
calculate n , and n = 17.67
which are....18 green tea + 1 JAVA CHIPS!! for free!!!
haha..
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