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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
A farm used two harvesting machines, H and K, to harvest 100 acres of
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19 Jan 2023, 10:33
19 Jan 2023, 10:33
Expert Reply
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Question Stats:
100% (02:13) correct
0% (00:00) wrong based on 10 sessions
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A farm used two harvesting machines, H and K, to harvest 100 acres of wheat. Harvesting machine H, working alone at its constant rate, harvested 40 acres of wheat in 8 hours. Then harvesting machine K was brought in, and harvesting machines H and K, working together at their respective constant rates, harvested the remaining acres of wheat in 5 hours. Harvesting machine K harvested how many acres of wheat per hour?
(A) 7
(B) 8
(C) 12
(D) 13
(E) 15
(A) 7
(B) 8
(C) 12
(D) 13
(E) 15
Re: A farm used two harvesting machines, H and K, to harvest 100 acres of
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21 Jan 2023, 03:08
21 Jan 2023, 03:08
2
Expert Reply
Rate of H = 5 acres/hr
Remaining land to be harvested = 100 - 40 = 60
Rate of H and K = 60/5 = 12 acres/hr
Rate of K = 12 - 5 = 7
Answer: A
Remaining land to be harvested = 100 - 40 = 60
Rate of H and K = 60/5 = 12 acres/hr
Rate of K = 12 - 5 = 7
Answer: A
Re: A farm used two harvesting machines, H and K, to harvest 100 acres of
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26 Mar 2024, 13:36
26 Mar 2024, 13:36
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