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A business bought r typewriters at $100 each and s  Question banks Downloads My Bookmarks Reviews Important topics Author Message TAGS: Intern Joined: 14 Sep 2004 Posts: 5 Followers: 0 Kudos [?]: 0 [0], given: 0 A business bought r typewriters at$100 each and s [#permalink]  24 Sep 2004, 19:35
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A business bought r typewriters at $100 each and s calculators for$50 each. what is the total cost of the typewriters and calculators.

(1) the s calculators cost $200 (2) 2r+s = 10 Kaplans answer is B. ( ie. 2 is sufficient ) I think the answer is E ( ie. none sufficient ). Can anybody clarify?. 2r+s does not give one answer.  Kaplan GMAT Prep Discount Codes Knewton GMAT Discount Codes Manhattan GMAT Discount Codes Director Joined: 20 Jul 2004 Posts: 593 Followers: 1 Kudos [?]: 50 [0], given: 0 [#permalink] 24 Sep 2004, 20:52 Total amount= 100r+50s =50(2r+s) =50(10) =500 B. Director Joined: 31 Aug 2004 Posts: 606 Followers: 3 Kudos [?]: 47 [0], given: 0 [#permalink] 25 Sep 2004, 08:39 Agree with hardworker, sometimes we have to be careful with stems while they provide the answer regardless a simple coefficient... Same issue for pbs with 2 equations and 2 unknow variables... [#permalink] 25 Sep 2004, 08:39 Similar topics Replies Last post Similar Topics: 9 A dealer originally bought 100 identical batteries at a tota 4 07 Dec 2012, 03:24 1 A dealer originally bought 100 identical batteries at a tota 11 03 Jul 2008, 09:43 A business bought r typewriters at$100 per typewriter and s 11 17 Oct 2006, 07:33
CR Typewriter 7 13 Sep 2006, 10:47
CR : typewriter 4 28 Sep 2005, 03:39
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