Guild Wars 2

For example:
A friend and I place and order on the TBLC asking for 50 iron ores each, both at the same price.

That’s 100 iron ores on demand.

Then, someone wants to sell 50 iron ores at the price we are offering.

Where does the 50 ores go to? Do they divide by the amount of demand (my friend and I) or do they go to the person that place the order first?

What are your thoughts about the less supplied items in the BLTC?

Also, have you find problems buying certain items because it’s price vary a lot from time to time?