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Question:

Which of the following years exhibited highest percentage increase over the preceding year in the automobile sales?

Explanation:

From the solution of question 2, we have the sales as follows:

Year 2004 = 1450

Year 2005 = 1525

Year 2006 = 1925

Year 2007 = 2025

Year 2008 = 1875

Subtracting the sales from the previous years, we get increase in the sales for:

Year 2005 = 75;

Year 2006 = 400;

Year 2007 = 100;

Year 2008 shows a decrease.

2006 shows the highest increase, i.e. its percentage increase in the highest.

Hence, option (b).