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555-605 Level|   Arithmetic|      
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CAMANISHPARMAR
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If Norbert can cut up one plastic six pack container in 30 seconds... 02 Nov 2018, 12:11
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E
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25% (medium)

Question Stats:

79% (01:43) correct 21% (02:15) wrong based on 350 sessions

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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
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E
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philipssonicare
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If Norbert can cut up one plastic six pack container in 30 seconds... 02 Nov 2018, 16:06
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1 six-pack in 30 second
512 six-packs in ?

512x0.5mins, double the decimal and half the whole number so it's easier to work with
256x1 min=256mins

256÷60 is hard

So simply: 60, 120, 180, 240

256-240=16

4 hours and 16 mins

E
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If Norbert can cut up one plastic six pack container in 30 seconds... Updated on: 17 May 2021, 07:36
Originally posted by BrentGMATPrepNow on 02 Apr 2019, 07:58.
Last edited by BrentGMATPrepNow on 17 May 2021, 07:36, edited 1 time in total.
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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

We can solve this question by applying equivalent ratios

For every 30 seconds that elapse, Norbert can cut up 1 plastic six-pack container
In other words, for every 0.5 MINUTES that elapse, Norbert can cut up 1 plastic six-pack container

Let t = the time (in MINUTES) to cut up 512 plastic six-pack containers

We can write: t/512 = 0.5/1
Cross multiply to get: (1)(t) = (512)(0.5)
Simplify to get: t = 256 MINUTES

256 minutes = 240 minutes + 16 minutes
= 4 hours + 16 minutes

Answer: E

Cheers,
Brent

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If Norbert can cut up one plastic six pack container in 30 seconds... 03 Apr 2019, 18:04
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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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If Norbert can cut up one plastic six pack container in 30 seconds... 15 Apr 2019, 17:36
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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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If Norbert can cut up one plastic six pack container in 30 seconds... 19 May 2025, 08:35
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