Accounting treatment for Foreign currency

Rider ride (CA Final) (180 Points)

19 December 2009  

 Hi 

please tell me accounting treatment for this following events

 

Event 1-A Co. acquires foreign currency ( say USD) in exchange for RS. ( say 1000 $   @ Rs. 50 per $ )

Event 2-Now they release this FC to one of their marketing officer for his foreign tour under imprest system.  Co released 1000 $.

Event 3-One month later after touring the traveller surrendered 100$ and expense sheet for 900$.

Event 4 - Co. Exchanges 100 $ for Rs 48 .

Please write a/c entries for all 4 events !

thanks