Question : Directions: The bar chart given below shows the sales (in 000 units) of 4 mobile brands for 3 years.
If for any year, the sales of a brand are more than the average sales of these four brands in that year, then it gets a star. Which brand has the maximum stars?
Option 1: Brand 3
Option 2: Brand 3 and 4 both
Option 3: Brand 4
Option 4: All brands
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Correct Answer: Brand 4
Solution :
As per the given graph:
If the sales of a brand are more than the average sales of these four brands in that year, then it gets a star.
The average sales in the year 2014 (in 000) = $\frac{4+4.5+6+7.5}{4}=5.5$
In the year 2014, Brand 3 and Brand 4 get a star.
The average sales in the year 2015 (in 000) = $\frac{5.5+5+6.5+8.5}{4}=6.375$
In the year 2015, Brand 3 and Brand 4 get a star.
The average sales in the year 2016 (in 000) = $\frac{7.5+6+7.5+9.5}{4}=7.625$
In the year 2016, Brand 4 got a star.
So, Brand 4 gets the most stars.
Hence, the correct answer is 'Brand 4'.
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