U.S. dollar price of a British pound

U.S. dollar price of a British pound
Suppose the U.S. dollar price of a British pound is $1.50; the dollar price of a euro is $.90; a hotel room in London, England, costs 120 British pounds; and a comparable hotel room in Hanover, Germany, costs 220 euros.
a. Which hotel room is cheaper to a U.S. tourist?
b. What is the exchange rate between the euro and the British pound?

U.S. dollar price of a British pound