Question

Adam buys a bigger turkey than he needs.

Answer 1

He should start cooking at 15:00

Answer 2

Ok...u got a 7 kg bird

allow 20 minutes per kg, + 90 minutes...
(20 * 7) + 90 = 140 + 90 = 230 minutes....cooking time

allow to rest 30 min. before carving

17:15 - (30 + 230) = 17:15 - 260 minutes.....260 min = 4 hrs 20 minutes....so u should start cooking at : 12:55 <==