Vidyarthiplus (V+) - Indian Students Online Education Forum

Fred can eat 27 chocolates in a hour, Alice can eat 2 chocolates in 10 minutes, and Kelly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a large box of 120 chocolates whilst watching a movie?

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They are watching movie.. so they cant concentrate on sharing...If they can share and eat, then it takes 2 hours to empty the 120 choclate box..

Fred: 27/1
Alice: 12/hr
Kelly: 21/hr
total: 60....
120/60=2 so 2hrs.