I want to check my answers for the questions that follows this partial adjusted trial balance:

Supplies 600
Prepaid insurance 2400
Salaries payable 800
unearned revenue1000
supplies expense950
insurance expense400
salaries expense1800
service revenue3000

Ques:1. If the amount in supplies is the Jan 31 adjusting entry, and $650 of supplies was purchased in Jan, what was the balance in supplies on Jan1?
2. If the amount in insurance expense is the Jan 31 adjusting entry, and the original insurance premium was for one year, what was the total premium and when was the policy purchased?
3. If $2500 of salaries was paid in Jan, what was the balance salaries payable at Dec 31, 06?
4. If $1600 was received for services performed in Jan, what was the balance in Unearned revenue at dec 31, 06?

My answers

1. Opening supplies balance + purchases - supplies expenses = closing balance
Opening balance +$650 – $950 = $600
Therefore, opening balance as of Jan 1 was $900

2. $2800 Dec 31 ,2008
3. $3300
4. no idea how to do this

You got number 1 and 2 right.

For number 3, Salaries Payable Beginning = Salaries Payable Ending + Payments of Salaries Made - Current Year's Salaries Expense

For number 4, Unearned Revenue Beginning = Unearned Revenue Ending Balance - Cash Receipt for Services Rendered + Service Revenue Recognized for the Current Year

Thanks a bunch for your help :-)

No problem :)

Why are Salaries Expense and Service Revenue included in the computation for nos. 3 & 4, respectively? Unlike in nos. 1 & 2, nothing was stated in nos. 3 & 4 that the other expenses and revenue were the Jan 31 adjusting entries. Could you please help me out with this?