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CAMANISHPARMAR
If Norbert can cut up one plastic six pack container in 30 seconds, how long will take it take him to cut up 512 six pack containers?

(A) 4 hours
(B) 4 hours 4 minutes
(C) 4 hours 12 minutes
(D) 4 hours 15 minutes
(E) 4 hours 16 minutes

If Norbert can cut up one container in 30 seconds, then he can cut up 2 containers in one minute. Thus it will take him 512/2 = 256 minutes to cut up all the containers and 256 minutes = 256/60 = 4 hours and 16 minutes.

Answer: E
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Forget the division of 512.

We need to find how much time he can cut 512 containers.

If he cuts 2 containers per minute, then he can cut 120 per hour.

480 is the closest multiple to 120. So that's 480 containers in 4 hours.

The remainder is 32, if he can cut 2 per minute, then the remainder is 16 minutes.
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