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# PS: Bunch of letters.

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Retired Moderator
Joined: 18 Jul 2008
Posts: 962

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28 Jan 2009, 16:23
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In the bunch of letters 60 were found to be anonymous and typewritten. 15 percent of typewritten letters were anonymous. How many letters that were not anonymous were typewritten?

120
180
340
360
400

I'm not sure I'm reading this right...

Kudos [?]: 294 [0], given: 5

Director
Joined: 14 Aug 2007
Posts: 726

Kudos [?]: 211 [0], given: 0

Re: PS: Bunch of letters. [#permalink]

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28 Jan 2009, 20:11
In the bunch of letters 60 were found to be anonymous and typewritten. 15 percent of typewritten letters were anonymous. How many letters that were not anonymous were typewritten?

120
180
340
360
400

I'm not sure I'm reading this right...

is it C.340?

15/100*Total Typewritten letter = 60

Total typewritten letters = 400
& typewritten letters that were not anonymous = 400-60=340

Kudos [?]: 211 [0], given: 0

SVP
Joined: 07 Nov 2007
Posts: 1792

Kudos [?]: 1058 [0], given: 5

Location: New York
Re: PS: Bunch of letters. [#permalink]

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28 Jan 2009, 20:18
In the bunch of letters 60 were found to be anonymous and typewritten. 15 percent of typewritten letters were anonymous. How many letters that were not anonymous were typewritten?

120
180
340
360
400

I'm not sure I'm reading this right...

poorly worded question..

what I understood is

Assuming that all letters typewritten.. they contain ananymous and regular letters.

60 letters are ananymous and typewritten

15 percent of typewritten letters were anonymous =X and Y = 15% of total.

15/100* T=60
T= 400

letters that were not anonymous were typewritten = 400-60=340
_________________

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Kudos [?]: 1058 [0], given: 5

Retired Moderator
Joined: 18 Jul 2008
Posts: 962

Kudos [?]: 294 [0], given: 5

Re: PS: Bunch of letters. [#permalink]

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29 Jan 2009, 10:52
In the bunch of letters 60 were found to be anonymous and typewritten. 15 percent of typewritten letters were anonymous. How many letters that were not anonymous were typewritten?

I read it as there are 4 types.

Anonymous
Not Anonymous
Typewritten
Not Typewritten

No wonder I was so confused...

Kudos [?]: 294 [0], given: 5

Re: PS: Bunch of letters.   [#permalink] 29 Jan 2009, 10:52
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