Your question is very interesting. You are already a foreign exchange trader in the bank. The bank will give you the exchange rate for these three small questions.

Bank buying price, bank selling price,

If you are a self-operated foreign exchange trader in a bank, there are no customers to talk to.

3. If the customer wants to sell dollars, what is the exchange rate? -If the customer sells dollars, what should the customer buy? Euro, pound, yen, Canadian dollar. . . . . ? Banks have quotations in different currencies and exchange rates.