Answer:
18 nuts in 12 minutes, 13.5 nuts in 4 minutes and 90 nuts in one hour
Explanation:
12 min :
12/6 = 2
2 x 9 = 18 nuts in 12 minuts
4 min:
6/4 = 1.5
1.5 x 9 = 13.5 nuts in 4 minutes
(round to 13 if whole nuts only)
1 hour:
1 hour = 60 mins
60/6 = 10
9 x 10 = 90 nuts in one hour