Question

The production of vehicles by three companies namely R,O,P over the years is given. In which year company R produced 20 vehicles?

Answer 1

Company R's production of vehicles is denoted by vertical lines in the bar graphs.
In the year 1994 : 40-20 = 20
In the year 1998 : 60-40 = 20
So, in two years 1994, 1998 company R produced 20 vehicles.