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Printer A and Printer B can each print 1 ⁄4 page per second. How long

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Printer A and Printer B can each print 1 ⁄4 page per second. How long  [#permalink]

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New post 10 Jan 2016, 08:28
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

79% (00:49) correct 21% (00:36) wrong based on 127 sessions

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Re: Printer A and Printer B can each print 1 ⁄4 page per second. How long  [#permalink]

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New post 10 Jan 2016, 08:37
Printer A + Printer B can print a total of 1/2 page per second.

100(1/2) = 200 seconds

Ans D
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Printer A and Printer B can each print 1 ⁄4 page per second. How long  [#permalink]

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New post 11 Jan 2016, 04:39
Bunuel wrote:
Printer A and Printer B can each print 1⁄4 page per second. How long will it take both printers working together to print 100 pages?

A. 25 seconds
B. 50 seconds
C. 100 seconds
D. 200 seconds
E. 400 seconds


Total work = Printer A + Printer B= 2 Printer A
100= 2 * 1/4 * T........ T=200 second

Answer: D
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Printer A and Printer B can each print 1 ⁄4 page per second. How long  [#permalink]

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New post 11 Jan 2016, 21:26
Bunuel wrote:
Printer A and Printer B can each print 1⁄4 page per second. How long will it take both printers working together to print 100 pages?

A. 25 seconds
B. 50 seconds
C. 100 seconds
D. 200 seconds
E. 400 seconds


Ans. \(100/(1/4 + 1/4) = 200\)
Hence (D)
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Re: Printer A and Printer B can each print 1 ⁄4 page per second. How long  [#permalink]

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New post 15 Jul 2017, 10:34
Bunuel wrote:
Printer A and Printer B can each print 1⁄4 page per second. How long will it take both printers working together to print 100 pages?

A. 25 seconds
B. 50 seconds
C. 100 seconds
D. 200 seconds
E. 400 seconds


1/4 page can be completed in 1 sec.
1 page can be completed in 4 sec.
So both can complete 1 page in 2 seconds.
100 pages can be completed in 200 seconds.
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Re: Printer A and Printer B can each print 1 ⁄4 page per second. How long  [#permalink]

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New post 15 Jul 2017, 10:59
Each printer prints 0.25page in a sec.
Thus both printers together print 0.5 page /sec which implies 1page/2sec.

Thus 100 pages will take 100*2=200 seconds.

Option D

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Re: Printer A and Printer B can each print 1 ⁄4 page per second. How long   [#permalink] 15 Jul 2017, 10:59
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Printer A and Printer B can each print 1 ⁄4 page per second. How long

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