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If printing press A, running alone at its constant rate, produces 27,000 newspapers in six hours, how long does it take printing press B, running alone at its constant rate, to produce 27,000 newspapers?
(1) Running alone at their respective constant rates, printing press B produces two newspapers in the same amount of time that printing press A produces three newspapers.
(2) Running together at their respective constant rates, the two presses produce 7,500 newspapers in one hour.
(1) Running alone at their respective constant rates, printing press B produces two newspapers in the same amount of time that printing press A produces three newspapers.
(2) Running together at their respective constant rates, the two presses produce 7,500 newspapers in one hour.
yashikaaggarwal
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24 Sep 2020, 00:58
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Given: Printing press A, running alone at its constant rate, produces 27,000 newspapers in six hours => 27000 newspapers in 6 hours.
27000/6 = 4500 newspaper in an hour.
To find: how long does it take printing press B, running alone at its constant rate, to produce 27,000 newspapers?
(1) Running alone at their respective constant rates, printing press B produces two newspapers in the same amount of time that printing press A produces three newspapers.
B prints 2/3 of newspaper what A print in a given time.
A print 4500 newspaper in 1 hour
4500/60 = 75 newspaper per second.
So B prints 50 newspapers per second.
27000 newspapers in 27000/50 = 540 minutes.
540 seconds = 9 hours
(Sufficient)
(2) Running together at their respective constant rates, the two presses produce 7,500 newspapers in one hour.
A prints 4500 newspapers in an hour
So, B prints 7500-4500 = 3000 newspapers
B will print 27000 newspapers in 27000/3000 = 9 hours
(Sufficient)
Answer is D
Posted from my mobile device
27000/6 = 4500 newspaper in an hour.
To find: how long does it take printing press B, running alone at its constant rate, to produce 27,000 newspapers?
(1) Running alone at their respective constant rates, printing press B produces two newspapers in the same amount of time that printing press A produces three newspapers.
B prints 2/3 of newspaper what A print in a given time.
A print 4500 newspaper in 1 hour
4500/60 = 75 newspaper per second.
So B prints 50 newspapers per second.
27000 newspapers in 27000/50 = 540 minutes.
540 seconds = 9 hours
(Sufficient)
(2) Running together at their respective constant rates, the two presses produce 7,500 newspapers in one hour.
A prints 4500 newspapers in an hour
So, B prints 7500-4500 = 3000 newspapers
B will print 27000 newspapers in 27000/3000 = 9 hours
(Sufficient)
Answer is D
Posted from my mobile device
24 Sep 2020, 02:13
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Hi yashikaaggarwal
Your logic is fine but 1 hour = 60 minutes = 3600 seconds.
Please correct minor issues.
Your logic is fine but 1 hour = 60 minutes = 3600 seconds.
Please correct minor issues.
yashikaaggarwal
Given: Printing press A, running alone at its constant rate, produces 27,000 newspapers in six hours => 27000 newspapers in 6 hours.
27000/6 = 4500 newspaper in an hour.
To find: how long does it take printing press B, running alone at its constant rate, to produce 27,000 newspapers?
(1) Running alone at their respective constant rates, printing press B produces two newspapers in the same amount of time that printing press A produces three newspapers.
B prints 2/3 of newspaper what A print in a given time.
A print 4500 newspaper in 1 hour
4500/60 = 75 newspaper per second.
So B prints 50 newspapers per second.
27000 newspapers in 27000/50 = 540 seconds.
540 seconds = 9 hours
(Sufficient)
(2) Running together at their respective constant rates, the two presses produce 7,500 newspapers in one hour.
A prints 4500 newspapers in an hour
So, B prints 7500-4500 = 3000 newspapers
B will print 27000 newspapers in 27000/3000 = 9 hours
(Sufficient)
Answer is D
Posted from my mobile device
27000/6 = 4500 newspaper in an hour.
To find: how long does it take printing press B, running alone at its constant rate, to produce 27,000 newspapers?
(1) Running alone at their respective constant rates, printing press B produces two newspapers in the same amount of time that printing press A produces three newspapers.
B prints 2/3 of newspaper what A print in a given time.
A print 4500 newspaper in 1 hour
4500/60 = 75 newspaper per second.
So B prints 50 newspapers per second.
27000 newspapers in 27000/50 = 540 seconds.
540 seconds = 9 hours
(Sufficient)
(2) Running together at their respective constant rates, the two presses produce 7,500 newspapers in one hour.
A prints 4500 newspapers in an hour
So, B prints 7500-4500 = 3000 newspapers
B will print 27000 newspapers in 27000/3000 = 9 hours
(Sufficient)
Answer is D
Posted from my mobile device
