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# For what duration did Antony speak in a meeting?

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Math Expert
Joined: 02 Sep 2009
Posts: 61358
For what duration did Antony speak in a meeting?  [#permalink]

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27 Jan 2020, 01:42
00:00

Difficulty:

35% (medium)

Question Stats:

82% (01:21) correct 18% (00:22) wrong based on 16 sessions

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For what duration did Antony speak in a meeting?

(1) He spoke an average of 55 words per minute.

(2) He would have spoken for 12 more minutes had his speaking rate been 4 words less per minute.

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Joined: 22 Sep 2018
Posts: 67
Re: For what duration did Antony speak in a meeting?  [#permalink]

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27 Jan 2020, 07:29
statement 1

average = 55,

total words / total time = 55,
not sufficient ,

statement 2 ,

let x be rate ,

total words / total time - 12 min = orginal average - 4.. not sufficient

By combining , we have original average or rate = 55 words per min.

total words/ total time - 12 = 51.

52*total time / total time -12 = 51.

total time = 51*12 = 610 minutes.

OPTION C
Re: For what duration did Antony speak in a meeting?   [#permalink] 27 Jan 2020, 07:29
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