Study the given bar graphs and answer the question that follows.

The bar graphs represent the amount invested in raw materials (in ₹ crore) and the sale of the products, by a textile company in the years 2007— 2012. The X-axis represents the years. The Y-axis represents the amount invested in raw materials (in ₹ crore) in figure 1 and sale of products in figure 2, respectively.

In which year was there a maximum percentage increase in the sales of products as compared to the previous year?

2009

Lets solve one by one for each option .

1. 2008

Percentage increase in sales in 2008 compared to the previous year

= \(\frac{600-400 }{400}\) × 100

= \(\frac{200 }{400}\) × 100

= 50%

2. 2010

In 2010 there is decrease in sales as compared to previous year.

3. 2009

Percentage increase in sales in 2009 compared to the previous year

= \(\frac{1000-600 }{600}\) × 100

= \(\frac{400 }{600}\) × 100

= 66.67%

1. 2011

Percentage increase in sales in 2011 compared to the previous year

= \(\frac{1200-800 }{800}\) × 100

= \(\frac{400 }{800}\) × 100

= 50%

So , percentage increase in sales in 2009 is maximum as compared to previous year.

Ans :-  2009