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Difficult Math Question #46 - Arithmetic

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800guy Master | Next Rank: 500 Posts Default Avatar
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Difficult Math Question #46 - Arithmetic

Post 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

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

im an idiot Embarassed

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Jeff Sacco
www.jeffsacco.ca

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800guy Master | Next Rank: 500 Posts Default Avatar
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Post Mon Nov 06, 2006 10:47 am
OA:

1998 = $500 M
1999 = $550 M

Sum = $ 1050 M
Ans:B

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

im an idiot Embarassed

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Jeff Sacco
www.jeffsacco.ca

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800guy Master | Next Rank: 500 Posts Default Avatar
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Post Mon Nov 06, 2006 10:47 am
OA:

1998 = $500 M
1999 = $550 M

Sum = $ 1050 M
Ans:B

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logik1911 Newbie | Next Rank: 10 Posts Default Avatar
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Post 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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