Which of these solutions is true
First one. Which shows the closing balance of -30,000 in jan, -10,000 in Feb and -30,000 in March.
*In second one it does not care about one month credit sale and purchase and IP cost are shown wrong it is from the month jan.
*In third one same problem of one month credit sales and purchase. Worst it takes also debtors and creditors separately from sales and purchase. Problem of IP cost are same.