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Jessica can text 85 words per minute, while Maurice can tex

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Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 02 Dec 2012, 02:08
1
7
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A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

77% (02:44) correct 23% (02:50) wrong based on 288 sessions

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Jessica can text 85 words per minute, while Maurice can text 10 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?

A. 0.3
B. 1.3
C. 3
D. 9
E. 11.3
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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 02 Dec 2012, 02:12
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apoorvarora wrote:
Jessica can text 85 words per minute, while Maurice can text 10 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?

A .3
B 1.3
C 3
D 9
E 11.3


combined rate = 85 + 10 = 95words/min

time = 410,400/95 mins = 4320mins = 4320/60 hrs = 72hrs = 72/24 days = 3days
Answer will be C
hope it helps!
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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 02 Dec 2012, 02:23
apoorvarora wrote:
Jessica can text 85 words per minute, while Maurice can text 10 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?

A .3
B 1.3
C 3
D 9
E 11.3



Combined, they can text 95 words per minute.

So they will take 410,400 / 95 = 4320 mins to type the entire book

which is 4320/(60*24) days = 3 days
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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 02 Dec 2012, 02:27
apoorvarora wrote:
Jessica can text 85 words per minute, while Maurice can text 10 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?

A .3
B 1.3
C 3
D 9
E 11.3


Since the answer choices are reasonably spaced out, we can approximate and save time

Combined words per day = 95*60*24 which should be something close to 150000 (i.e 100*25*60)

410400/150000 will be closest to only 3,

So, Answer should be C.
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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 28 Sep 2013, 01:02
Rate * Time = Work

Combined Rate = 85+10

95*Time = 41400

Time in Days = 41400/(95*60*24)

T=3
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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 17 Jul 2017, 08:46
I followed this question perfectly until I got to the 410400/95 part to get the total minutes it would take. Is there a math shortcut for this because fumbled with the long division along time
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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 17 Jul 2017, 09:12
apoorvarora wrote:
Jessica can text 85 words per minute, while Maurice can text 10 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?

A. 0.3
B. 1.3
C. 3
D. 9
E. 11.3



hi gradyf,

Not likely that you will see such intensive calculations..
But if you such a Q..

Combined speed 85+10=95 words/min..
so 410400 words in \(\frac{410400}{95*60*24}\) days..

Now see if choices can help you...
4104 is a multiple of 9 as 4+1+0+4 is multiple of 9.....
4104 is also a multiple of 19 as the Denominator 95 is a multiple of 19 and NONE of the choices have 19..
also 4104 is a multiple of 8 as LAST 3 digits 104 is multiple of 8....
when you multiply 9*19*8, you realize only another 3 is required to reach 4104...
so \(\frac{19*9*8*3*100}{19*5*60*8*3}=\frac{9*10*5*2}{5*3*2*10}=3\)

ofcourse still calculations are there but slightly lesser work
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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 02 Aug 2018, 11:50
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apoorvarora wrote:
Jessica can text 85 words per minute, while Maurice can text 10 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?

A. 0.3
B. 1.3
C. 3
D. 9
E. 11.3


Since the answer choices are somewhat spread apart, we can probably use some estimation...

Jessica can text 85 words per minute, while Maurice can text 10 words per minute
So, COMBINED, they can text 95 words per minute
Let's round this up to 100 words per minute
So, the number of words PER HOUR = (100)(60) = 6000
And, the number of words PER DAY = (24)(6000) ≈ (25)(6000) ≈ 150,000

So, COMBINED, the two people can text approximately 150,000 words per day

Working together, how many days will it take Jessica and Maurice to text 410,400 words?
Time = output/rate
= 410,400/150,000
≈3

Answer: C

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Re: Jessica can text 85 words per minute, while Maurice can tex  [#permalink]

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New post 18 Aug 2018, 20:00
apoorvarora wrote:
Jessica can text 85 words per minute, while Maurice can text 10 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?

A. 0.3
B. 1.3
C. 3
D. 9
E. 11.3


Together they can text 85 + 10 = 95 words per minute, which means they can text 95 x 60 = 5,700 words per hour. Therefore, if we let x = the number of hours it takes for them to text the entire abridged translation of War and Peace, we have:

5,700x = 410,400

x = 410,400/5,700

x = 72 hours

Assuming they work 24 hours a day, it will take them 72/24 = 3 days to text the entire abridged translation of War and Peace.

Answer: C
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Re: Jessica can text 85 words per minute, while Maurice can tex   [#permalink] 18 Aug 2018, 20:00
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