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Updated on: 24 Apr 2017, 00:41
Originally posted by VyshakhR1995 on 24 Apr 2017, 00:31.
Last edited by Bunuel on 24 Apr 2017, 00:41, edited 1 time in total.
Last edited by Bunuel on 24 Apr 2017, 00:41, edited 1 time in total.
Edited the question.
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
93% (01:10) correct
7%
(01:40)
wrong
based on 191
sessions
History
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Time
Result
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A machine at the golf ball factory can produce 16 golf balls in 5 minutes. If several of these machines work independently and each machine performs at the same rate, how many machines are needed to produce 32 golf balls per minute?
A) 3
B) 6
C) 8
D) 10
E) 13
A) 3
B) 6
C) 8
D) 10
E) 13
24 Apr 2017, 00:45
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VyshakhR1995
32 golf balls per minute = 32*5 = 160 golf balls in 5 minutes.
We know that the machine can produce 16 golf balls in 5 minutes. So, we'll need 10 machines.
Answer: D.
13 Aug 2018, 07:35
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VyshakhR1995
Let's answer the question in steps...
GIVEN: 1 machine produces 16 golf balls in 5 minutes.
So, 1 machine produces 16/5 golf balls in 1 minute [if we have 1/5 the time, then the output is 1/5 as much]
So, 5 machines produce 16 golf balls in 1 minute [if we have 5 times the number of machines, then the output is 5 times as much]
So, 10 machines produce 32 golf balls in 1 minute [if we double the number of machines, then the output is doubled]
Answer: D
Cheers,
Brent
