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Typists problem

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If two typists can type two pages in two minutes, how many typists does it take to type 18 pages in 18 minutes?

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Posted · Report post

I agree with the answer of two typists. It makes perfect sense, and if you set up an alegebraic equation, you also get an answer of two.

Here's the math:

Total Time= (Constant*Number of Pages)/Number of typists

T=KP/Y

2=2K/2

(2=2x/2)*2

(4=2K)/2

K, your constant = 2

Therefore- Total time=2*Number of pages/typists

(18=36/Y)*T

(18Y=36)/18

Y=2

So it will take 2 typists!

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If two typists can type two pages in two minutes, then one typist can type one page in one minute, which means she can then types a page/minute and would be able then to type 18 pages in 18 minutes since it's still a 1:1 ratio.

Your wrong, the answer is 2. If two typist type 2 pages in 2 minutes then that meant each typist typed one page in a 2 min period meaning that each typist types at a rate of 1 page every 2 mins. in 18 mins each typist would type 9 pages so you would need 2 typist to types 18 pages in 18 mins.

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Posted · Report post

Simple. Two. If t can type 2 in 2, 2 can type 18 in 18.

I've heard these many times, and there's a very simple way to solve them.

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It really depends on how you look at it! People aren't wrong saying one or two. "2 typists can type two pages in two minutes" can be interpreted 2 different ways!!!

~~~If you are thinking each typist can type a page a minute, or "2 typists can EACH type two pages in two minutes", then your answer is ONE

~~~If you think each typist can type half a page a minute, or "2 typists can TOGETHER type two pages in two minutes", then your answer is TWO

So EACH (1:1 ratio) = One typist

TOGETHER (2:1 ratio) = Two typists

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If two typists can type two pages in two minutes, how many typists does it take to type 18 pages in 18 minutes?

Simply 2 (if one typist can type one page in one minute, etc) :D

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Posted · Report post

The answer is one because it only takes one typist to type one page in one minute. If the answer is 2 typist, then 18 pages will be done in 9 minutes. Not 18 minutes. ;)

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Depends answer could be one, if each typist in the question could type one page per minute than one typist can type 18 pages in 18 minutes.

If they are a team and they can do 2 pages in 2 minutes only together then it , then you could say 9, or you could say 18. Depends on perception

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Posted · Report post

Damn,I almost fell for it... :lol:

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ya this one is kinda popular.

2 because its all a 2:1 ratio.

think of it as dividing 2 by 2, and dividing 18 by 18... you get the same answer...1

although that had absolutley nothing to do with the answer.

(my 3rd post ever!!! yay.)

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Damn,I almost fell for it... :lol:

ya i did 2 the first time i tried :lol:

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2 typists!!! Because if two typists can together produce 2 typed pages in a span of two minutes then each typist can by themselves produce 1 pages every 2 minutes so...

1 typist: 1 page 2 minutes

1 typist: 1 page 2 minutes

Then 2 pages per 2 minutes then 2x9 and 2x9 = 18 pages in 18 minutes

so 2 typists!! They just type for an extra 16 minutes so an extra 16 pages!!!

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Asked my Consultant E.T. (the guy in the pic) and he spelled it out simply:

It takes 2 typists 2 minutes to type 2 pages thus each typist types 1 page in that 2 minutes, still with me? I said yes.

Since it takes 1 typist 2 minutes to type 1 page, how many pages can he type in 18 minutes? 9 was my reply, he said "correct".

If 1 typist can type 9 pages in 18 minutes, how many typists would it take to type 18 pages in 18 minutes? I just nodded and said:

IT TAKES TWO TYPIST 18 MINUTES TO TYPE 18 PAGES.

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One typist types one page in two minutes. His typing speed decreases in successive time and thus he will not be able to type 9 pages in 18 minutes. :)

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