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• ### $450 Tuition Credit & Official CAT Packs FREE December 15, 2018 December 15, 2018 10:00 PM PST 11:00 PM PST Get the complete Official GMAT Exam Pack collection worth$100 with the 3 Month Pack ($299) • ### FREE Quant Workshop by e-GMAT! December 16, 2018 December 16, 2018 07:00 AM PST 09:00 AM PST Get personalized insights on how to achieve your Target Quant Score. # At a certain factory, the average (arithmetic mean) wage of 20 of the  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics Author Message TAGS: ### Hide Tags Math Expert Joined: 02 Sep 2009 Posts: 51218 At a certain factory, the average (arithmetic mean) wage of 20 of the [#permalink] ### Show Tags 25 Sep 2018, 03:55 00:00 Difficulty: (N/A) Question Stats: 100% (01:30) correct 0% (00:00) wrong based on 5 sessions ### HideShow timer Statistics At a certain factory, the average (arithmetic mean) wage of 20 of the workers is$25,000, the average wage of 25 other workers is $20,000, and the average wage of the remaining 5 workers is$100,000. What is the average wage of the 50 workers at the company?

(A) $25,000 (B)$30,000
(C) $35,000 (D)$50,000
(E) \$75,000

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At a certain factory, the average (arithmetic mean) wage of 20 of the  [#permalink]

### Show Tags

27 Sep 2018, 06:16
$$\frac{x}{20}$$=$$25$$
-->$$x=500$$

$$\frac{y}{25}$$=$$20$$
-->$$y=500$$

$$\frac{z}{5}$$=$$100$$
-->$$z=500$$

$$\frac{x+y+z}{50}$$ --> $$\frac{1500}{50}$$ --> $$30$$

Hence, B.
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At a certain factory, the average (arithmetic mean) wage of 20 of the &nbs [#permalink] 27 Sep 2018, 06:16
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# At a certain factory, the average (arithmetic mean) wage of 20 of the

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