Answer:
1. $329,000
2.$108,390
3. $28,750
Explanation:
1. The computation of cash paid is below
= Opening balance of accounts payable + Purchase made - Ending balance of account payable
= $171,000 + $300,000 - $142,000
= $329,000
2. Computation of sales
= Ending balance of accounts receivable + Cash receipts -Opening balance of accounts receivable
= $108,000 + $112,390 - $112,000
= $108,390
3. Opening cash balance
= Cash disbursements + Ending cash balance - Cash receipts
= $122,150 + $28,100 - $121,500
= $28,750