What percent of the average sales of branches B1, B2 and ...
The bar graph given below shows the sales of books (in thousand number) from six branches of a publishing company during two consecutive years 2000 and 2001.
Sales of Books (in thousand numbers) from Six Branches - B1, B2, B3, B4, B5 and B6 of a publishing Company in 2000 and 2001.
What percent of the average sales of branches B1, B2 and B3 in 2001 is the average sales of branches B1, B3 and B6 in 2000?
75%
77.5%
82.5%
87.5%
Correct answer is D
Average sales (in thousand number) of branches B1, B3 and B6 in 2000
= 1/3 x (80 + 95 + 70) = ( 245/3 )
Average sales (in thousand number) of branches B1, B2 and B3 in 2001
= 1/3 x (105 + 65 + 110) = ( 280/3 )
Therefore Required percentage = [ (245/3)/(280/3) x 100 ] % = ( 245/280 x 100 ) % = 87.5%
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