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.
Last year, a coffee roasting company purchased new roasting
[#permalink]
09 Apr 2019, 02:06
09 Apr 2019, 02:06
1
Expert Reply
1
Bookmarks
00:00
Question Stats:
74% (01:51) correct
25% (01:51) wrong based on 47 sessions
Hide Show timer Statistics
Last year, a coffee roasting company purchased new roasting machines to bring their total number of machines to 10. These 10 machines can roast 210 lbs of coffee beans in 3 hours. Before purchasing the new machines, the company could roast 84 lbs of beans in 2 hours. If all of the machines work at the same constant rate, how many machines did the company buy last year?
Show: :: machines
4
Re: Last year, a coffee roasting company purchased new roasting
[#permalink]
21 Apr 2019, 04:48
21 Apr 2019, 04:48
3
10 machine can roast 210 lbs of coffee beans in 3 hrs
1 machine can roast 21 lbs of coffee beans in 3 hrs
1 machine can roast 7 lbs of coffee beans in 1 hr
Before buying the new machines the company could roast 84 lbs of beans in 2 hrs
If 1 machine can roast 7 lbs of coffee beans in 1 hr then
1 machine can roast 14 lbs of coffee beans in 2 hrs
6 machines can roast 84 lbs of coffee beans in 2 hrs.
Therefore the company must have bought 4 machine last year.
1 machine can roast 21 lbs of coffee beans in 3 hrs
1 machine can roast 7 lbs of coffee beans in 1 hr
Before buying the new machines the company could roast 84 lbs of beans in 2 hrs
If 1 machine can roast 7 lbs of coffee beans in 1 hr then
1 machine can roast 14 lbs of coffee beans in 2 hrs
6 machines can roast 84 lbs of coffee beans in 2 hrs.
Therefore the company must have bought 4 machine last year.
Re: Last year, a coffee roasting company purchased new roasting
[#permalink]
29 Jul 2021, 10:05
29 Jul 2021, 10:05
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
