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If Machine X can make 40 widgets in 8 minutes, how many widg
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19 Oct 2017, 22:47
19 Oct 2017, 22:47
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Question Stats:
95% (00:32) correct
4% (00:00) wrong based on 22 sessions
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If Machine X can make 40 widgets in 8 minutes, how many widgets can it make in 1 hour?
(A) 90
(B) 180
(C) 240
(D) 300
(E) 320
Kudos for correct solution.
(A) 90
(B) 180
(C) 240
(D) 300
(E) 320
Kudos for correct solution.
Re: If Machine X can make 40 widgets in 8 minutes, how many widg
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20 Oct 2017, 07:15
20 Oct 2017, 07:15
1
Using ratios, we get 40:8 = x:60, where 60 is 1 hour in minutes. Then, solving for x we get \(x = \frac{60*40}{8} = 300\)
Answer D
Answer D
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Re: If Machine X can make 40 widgets in 8 minutes, how many widg
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08 Jan 2018, 11:01
08 Jan 2018, 11:01
Expert Reply
Bunuel wrote:
If Machine X can make 40 widgets in 8 minutes, how many widgets can it make in 1 hour?
(A) 90
(B) 180
(C) 240
(D) 300
(E) 320
(A) 90
(B) 180
(C) 240
(D) 300
(E) 320
Since 1 hour is 60 minutes, Machine X can make 40/8 x 60 = 5 x 60 = 300 widgets.
Alternate solution:
We can set up a proportion in which x is the number of widgets that can be made in 1 hour, or 60 minutes:
40/8 = x/60
5 = x/60
300 = x.
Answer: D
