You Exchanged $1,000 To $\times$ 105,000 for a Trip to Japan $\times$

Multiple Choice

You exchanged $1,000 to $\times$ 105,000 for a trip to Japan.During your stay,you spent $\times$ 50,000.Also,during this period the dollar weakened against the yen to 100 to a dollar.On your return,you went to the bank to exchange the remaining yen.How many dollars did you spend on the trip?

A) $550
B) $523
C) $450
D) $600