By what percentage was the total production of all three brands of laptops in 2008 less than that in the year 2012?
A
18
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B
20
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C
25
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D
24
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E
23
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Solution
The correct option is B 20 Total production in 2008 = 200 + 250 + 350 = 800 thousands Total production in 2012 = 300 + 330 + 370 = 1000 thousands ∴Requiredpercentage=1000−8001000×100=20%