Iift 2015 Question 80
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IIFT
Let's tabulate the chart ,
Since difference in average sales is given , Difference in sales can be found by multiplying it by 7
Let the sales of A in 2013 be 'a', C in 2010 be 'c', D in 2012 be 'd' .
Total sales of A = (6800+a*1000
B = 5800
C = (7400+c)
D = (5700+d)
E = 7000
On evaluating we get value of a = 500,c=800,d= 600 crores
On finding the unknown values , we get the below table
Let's evaluate the options one by one,
Option A: YoY growth of combined sales of all products in 2010 = 4700-4900/4900 = -0.0408
Option B: YoY growth of combined sales of all products in 2011 = 4200-4700/4700 = -0.1064
Option C: YoY growth of combined sales of all products in 2013 = 4400-4500/4500 = -0.0222
Option D: YoY growth of combined sales of all products in 2015 = 6000-5900/5900 = 0.0169
Among the above values, it is clear that the YoY growth of combined sales of all products in 2011 had a maximum decline.
Hence B is the correct answer.