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Register now and save up to $200 Available with Beat the GMAT members only code • Free Practice Test & Review How would you score if you took the GMAT Available with Beat the GMAT members only code • 1 Hour Free BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • 5 Day FREE Trial Study Smarter, Not Harder Available with Beat the GMAT members only code • Reach higher with Artificial Intelligence. Guaranteed Now free for 30 days Available with Beat the GMAT members only code Difficult Math Question #46 - Arithmetic This topic has 5 member replies 800guy Master | Next Rank: 500 Posts Joined 27 Jun 2006 Posted: 354 messages Followed by: 5 members Upvotes: 11 Difficult Math Question #46 - Arithmetic Fri Nov 03, 2006 1:12 pm For a certain company, operating costs and commissions totaled$550 million in 1990, representing an increase of 10 percent from the previous year. The sum of operating costs and commissions for both years was
(A) $1,000 million (B)$1,050 million
(C) $1,100 million (D)$1,150 million
(E) $1,155 million 800guy Master | Next Rank: 500 Posts Joined 27 Jun 2006 Posted: 354 messages Followed by: 5 members Upvotes: 11 Mon Nov 06, 2006 10:47 am OA: 1998 =$500 M
1999 = $550 M Sum =$ 1050 M
Ans:B

limits660 Senior | Next Rank: 100 Posts
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Sun Nov 05, 2006 5:35 pm
wow

im an idiot

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Jeff Sacco
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limits660 Senior | Next Rank: 100 Posts
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Sat Nov 04, 2006 6:21 am
Let x be the operating a commission costs the year before

x * 1.1 = 550m

x = 500m

550m + 500m = 1050m

therefore B

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Jeff Sacco
www.jeffsacco.ca

Last edited by limits660 on Sun Nov 05, 2006 5:36 pm; edited 2 times in total

shahmau Junior | Next Rank: 30 Posts
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Posted:
11 messages
Sun Nov 05, 2006 2:32 pm
550m + 500m = 1050m

logik1911 Newbie | Next Rank: 10 Posts
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28 Jun 2006
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1
Sun Nov 05, 2006 2:36 pm
the quickest way to solve this problem is to try a conversion factor

550 represents 110%

so...

550 x 10% = 500 500+550 = 1050
110%

note: 550 being on top of 110% represents 550/110%

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