myversa

the seller not necessary has change.  there is possibility that on that particular day everyone pays with 20 and the seller uses up all the changes.

myversa

just ask for change before buying stuff and then you don't need this question asked~~~~~
tiffiant 發表於 2009-12-1 01:34

you completed misunderstood op's question....

op does not want to ask for change; op just wants to know if the seller has enough change to return to op if op pays 20 bucks....

no one would ask change first before buying.....

myversa

In your case, you should just hand him 20 bucks and wait for him to give you 15 without saying anything.

To me, if you say "do you have change for 20", I would think that you want to break it down to 2 10s.  

Just like last night, I went to restaurant, let's say the bill was 60 something and I gave him 80 and one extra 20. I asked the waiter if I can have 2 10's from the 20.

I would not worry if he has change for 80.  If he does not, he would tell me and ask to see if I have smaller bill.

myversa

hmm.. interesting ... i bet he thought i wanted him to break the $20, could be into 2 $10 bills, or 4 $5 bills or so on. so he wanted to be more specific and asked about the change for $15 part...  i  ...
raima 發表於 2009-12-1 14:25

In that case, b jai's answer is the most appropriate.