Please post the following journal entries in to respective ledger accounts and find the closing balances in each account.

a) Cash a/c Dr 900 Sales Cr 900

b) Purchases a/c Dr 225 Cash a/c Cr 225

c) Office expenses a/c Dr 460 Cash a/c Cr 460

d) Prepaid expenses a/c Dr 50 Cash Cr 50

e) Cash a/c Dr 625 Sales Cr 625

f) Building a/c Dr 2,000 Cash Cr 2,000