GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Machine A, which produces 15 golf clubs per hour, fills a pr
[#permalink]
15 Jul 2018, 02:41
15 Jul 2018, 02:41
Expert Reply
00:00
Question Stats:
92% (00:58) correct
7% (01:01) wrong based on 40 sessions
Hide Show timer Statistics
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 5058 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 5047 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 5058 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 5047 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
Moderators:
