A visitor to a Central Asian republic is offered a new vehicle for 600,000 zoom, the national currency. She can buy zoom from a bank at the official exchange rate of 150 zoom per US dollar, but in the bazaar she could get 200 zoom to the dollar. If one dollar is worth 63 pence, what is the cost of the vehicle in pounds:
(a) if she buys zoom at the official rate?
(b) if she uses the bazaar?