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Machine A, which produces 15 golf clubs per hour, fills a pr
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15 Jul 2018, 02:41
15 Jul 2018, 02:41
Expert Reply
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Question Stats:
92% (00:58) correct
7% (01:01) wrong based on 40 sessions
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Machine A, which produces 15 golf clubs per hour, fills a production lot in 6 hours. Machine B fills the same production lot in 1.5 hours. How many golf clubs does machine B produce per hour?
?? golf clubs per hour
?? golf clubs per hour
Show: :: OA
60
Re: Machine A, which produces 15 golf clubs per hour, fills a pr
[#permalink]
15 Jul 2018, 02:47
15 Jul 2018, 02:47
Expert Reply
Explanation
First, calculate the size of a production lot. Machine A works at a rate of 15 golf clubs per hour and completes a production lot in 6 hrs. Plug this information into the W = RT
formula:
image1.jpg [ 22.3 KiB | Viewed 5089 times ]
w = 15 clubs per hour × 6 hours = 90 clubs
Therefore, a production lot consists of 90 golf clubs. Since machine B can complete the lot in 1.5 hours, use the W = RT chart a second time to calculate the rate for machine B:
image2.jpg [ 23.09 KiB | Viewed 5079 times ]
Make the calculation easier by converting 1.5 hours to \(\frac{3}{2}\) hours:
\(90= \frac{3}{2}r\) or r=60.
First, calculate the size of a production lot. Machine A works at a rate of 15 golf clubs per hour and completes a production lot in 6 hrs. Plug this information into the W = RT
formula:
Attachment:
image1.jpg [ 22.3 KiB | Viewed 5089 times ]
w = 15 clubs per hour × 6 hours = 90 clubs
Therefore, a production lot consists of 90 golf clubs. Since machine B can complete the lot in 1.5 hours, use the W = RT chart a second time to calculate the rate for machine B:
Attachment:
image2.jpg [ 23.09 KiB | Viewed 5079 times ]
Make the calculation easier by converting 1.5 hours to \(\frac{3}{2}\) hours:
\(90= \frac{3}{2}r\) or r=60.
gmatclubot
Re: Machine A, which produces 15 golf clubs per hour, fills a pr [#permalink]
15 Jul 2018, 02:47
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