Four bags of peanuts, with 30 peanuts per bag, is a total of 4*30=<<4*30=120>>120 peanuts.
Two hours is 60*2=<<2*60=120>>120 minutes.
Thus, consuming 120 peanuts, 1 at a time, at equally spaced intervals over two hours requires 120/120=<<120/120=1>>1 minute intervals between peanuts.
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