Darma can eat 20 peanuts in 15 seconds. At this same rate, how many peanuts could she eat in 6 minutes?
There are 60 * 6 = <T>multiply(60, 6)=360 seconds in 6 minutes.
Then there are 360/15 = <T>divide(360, 15)=24.0 sets of 15 seconds.
So, Darma could eat 24 x 20 = <T>multiply(24, 20)=480 peanuts.
