It's the second one for sure
12 times 2 is 24, and 24 times 2 is 48, so there was 48 cookies
.
Rates:
Ryan: 1 hole per 5 hours
Castel: 1 hole per 6 hours
.
Let x = time if working together
then
x(1/5 + 1/6) = 1
x(6 + 5) = 30
11x = 30
x = 30/11
x = 2.7273 hours
or
x = 2 hours and 44 minutes
15 I believe.. I could be wrong bc idk if youre adding the A's to the ratio or starting at 0