Please explain with steps

Suppose in New York /$ = 1, while in Tokyo \/$=2.2, but in London /\ = 0.50. (a) (3) Is there any profit that could be made with a triangular arbitrage action? If so, describe an example of how such a profit may be earned and what the profit would be. Start with either buying or selling 1,000,000 in London, assuming you are a British investor. (b) (2) What will happen to the dollar-pound exchange rate and cross rates after arbitrageurs notice this profit opportunity