Study the following table carefully to answer these questions:–
Details of the seat belts produced by different companies over the years.

N → Number of seat belts produced (in lakh)
D → Percentage of defective belts

1)What was the number of defective seat belts produced by company B, C and E together in
year 2014 ? (in Lakhs)

2)What was percentage increase/decrease in total production by all companies together from
2012 to 2013? (rounded off to the two decimal place)

3)What is the ratio of the average production of company A to that of B for all the given years ?

4)What percentage of total items produced by company F in 2011, 2015 and 2016 together are defective?

5) What was the average number of perfect seat belts produced by company D in 2013, 2014 and 2015 together? (in lakh)