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Last year, a coffee roasting company purchased new roasting
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09 Apr 2019, 02:06
09 Apr 2019, 02:06
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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?
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Re: Last year, a coffee roasting company purchased new roasting
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21 Apr 2019, 04:48
21 Apr 2019, 04:48
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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
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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).
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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.
