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Study the graph to answer these questions.
The graph below shows sales of different colour of Brand-X refrigerator for the year 2009, 2010 and 2011.
Brand-X: Sales volume by colour of refrigrator(in '000s)

How many instances are there in the graph where the difference in sale of refrigrators was greater or lesser by 35% or more as compared to the previous year?
Percentage in sale of refrigrator,
For red = $$\frac{15 - 10}{10} \times 100 = 50$$%
For Blue = $$\frac{16 - 7}{7} \times 100 = 128.5$$%
For Lemon = $$\frac{9 - 24}{24} \times 100 = -62.5$$%
For Grey = $$\frac{7 - 25}{25} \times 100 = -72.5$$%
For White = $$\frac{2 - 13}{13} \times 100 = -84.6$$%
There are 5 instances where the difference in sale of refrigrator was greater or lesser than 35% or more as compared to the previous year.
Hence, option B is the correct answer.
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