dont copy anywhere else i will downvote

Presented below are three revenue recognition situations. a. Groupo sells goods to MTN for payment due at delivery. b. Groupo sells goods on account to Grifols for S800,000, payment due in 30 days. c. Groupo sells goods to Magnus for S500,000, payment due in two installments, the first installment payable in 18 months and the second payment due 6 months later. The present value of the future payments is S464,000. Indicate the transaction price for each of these situations and when revenue will be recognized.