1) A bank gives you a quote on the MXP (Mexican Peso), with a bid price of 0.19 USD/MXP, and an ask price 1.4 pennies more.
What is the percentage bid-ask spread?
2) You get a bid-ask quote on the EUR of 1.31-1.36 USD/EUR.
How many EUR will you be able to buy with 100 USD?
3) You get a quote of 1.09 USD/CAD, and 98.6 JPY/USD.
What is the resulting JPY/CAD exchange rate?
4) You get a bid-ask quote of 1.18-1.23 USD/CAD, and a bid-ask quote of 85-91 JPY/USD. If you have some CAD, and want to buy some JPY, what is your resulting price for JPY, expressed as CAD/JPY?