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Intern
Joined: 12 May 2023
Posts: 20
Given Kudos: 65
GRE 1: Q154 V154
Sal and Pathik can finish a job together in 3 hours.
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24 Aug 2023, 23:35
24 Aug 2023, 23:35
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Question Stats:
66% (01:37) correct
33% (03:54) wrong based on 3 sessions
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Sal and Pathik can finish a job together in 3 hours. If Sal can do the job alone in 5 hours, what percent of the job does Pathik do when Sal and Pathik finish the entire job together?
Select one choice from the following options:
A) 20%
B) 30%
C) 40%
D) 50%
E) 60%
Select one choice from the following options:
A) 20%
B) 30%
C) 40%
D) 50%
E) 60%
Intern
Joined: 12 May 2023
Posts: 20
Given Kudos: 65
GRE 1: Q154 V154
Re: Sal and Pathik can finish a job together in 3 hours.
[#permalink]
24 Aug 2023, 23:36
24 Aug 2023, 23:36
Official Explanation:
The stem provides the time that two people can complete a job when working together and the time that one of them would take to complete the same job working alone.
Identify the task
Determine what percent of the job Pathik does when Sal and Pathik finish the entire job together.
Approach strategically
The word "percent" is a clue that this boils down to being a rate question rather than a combined work question. If Sal can finish the entire job in 5 hours, then he can finish 3/5 of the job in 3 hours. Therefore, 5/5–3/5=2/5 of the job remains to be done by Pat. Then 2/5 is equal to 40/100, or 40%. Choice (C) is correct.
The stem provides the time that two people can complete a job when working together and the time that one of them would take to complete the same job working alone.
Identify the task
Determine what percent of the job Pathik does when Sal and Pathik finish the entire job together.
Approach strategically
The word "percent" is a clue that this boils down to being a rate question rather than a combined work question. If Sal can finish the entire job in 5 hours, then he can finish 3/5 of the job in 3 hours. Therefore, 5/5–3/5=2/5 of the job remains to be done by Pat. Then 2/5 is equal to 40/100, or 40%. Choice (C) is correct.
Re: Sal and Pathik can finish a job together in 3 hours.
[#permalink]
25 Aug 2023, 01:15
25 Aug 2023, 01:15
Expert Reply
Please follow the rules. This is NOt a QCQ but a problem solving. Must be posted under the correct sub section
I moved it
Thanks
I moved it
Thanks
