Answer: Please see below
Step-by-step explanation:
1) Journal to record the purchase of 9000 premiums at 85 cents
Year Account Title and explanations Debit Credit
2020 n Inventory of premium $7,650
Cash $7,650
working
Purchase price= Number of units purchased x price per unit
9000 x 0.85= $7,650
2) Journal to record the sale of 109,000 boxes at $3.10
Year Account Title and explanations Debit Credit
2020 Cash $337,900
Sales Revenue $337,900
working
Sale price= Number of units sold x price sold per unit
109,000 boxes x $3.10= $337,900
3) Journal to record the premium expenses
Year Account Title and explanations Debit Credit
2020 Premium Expenses $4,080
Inventory on premium $4080
working
Premium expenses= coupons presented for redemption / number of coupons to redeem premium x price per premium
= 48,000/10 x 0.85 = $4,080
4) Journal to record the premium liability
year Account Title and explanations Debit Credit
2020 Premium Expenses $1,479
Premium liability $1,479
working
Estimated redemption on number of boxes sold = number of boxes sold x probability of redemption= 109,000 x 60 %= $65,400
premium liability of coupons = estimated redemption of premiums - number of coupons already redeemed
= 65,400- 48,000 = 17,400
Cost of premium liabilty = premium liability of coupons /number of coupons per premium x rate per premium
17,400/10 x 0.85 ==$1,479