They all add 3 then subtract it by 4
So it cooks for 2 hrs and 20 minutes......and it has to be done by 1 pm.
so from 1 p.m. - 2 hrs = 11 a.m........- 20 minutes = 10:40 a.m
start cooking at 10:40 a.m. and it will be done by 1 p.m
Yes I think it really is the correct answer
Can you please attach a photo or put up answer choices? It would help a lot. Thanks.