What percent to the average sales of branches B1B2andB3 in 2007 is the average sales of branches B1,B2,andB6 in 2006 ?
A
75%
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B
77%
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C
87.5%
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D
70%
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Solution
The correct option is C87.5% Average sales (in thousand numbers) of branches B1,B3B6 in 2006 =13×(80+95+70)=(2453) Average sales (in thousand numbers)of branches B1,B2andB3 in 2007. =13×(105+65+110)=(2803) ∴ Required percentage. =⎡⎢
⎢
⎢
⎢⎣(2453)(2803)×100⎤⎥
⎥
⎥
⎥⎦%=(245280×100)% =87.5%