The following Bar-Chart gives the production of cars by three different companies X, Y and Z in different years:
In which year was the percentage increase in production of cars minimum as compared to its previous year ?
2018
From the bar graph,
Total Production of car in 2014 = 300 + 200 + 500 = 1000
Total Production of car in 2015 = 400 + 300 + 500 = 1200
Percentage of production increase of from 2014 to 2015 = (200/1000) × 100 = 20%
Total Production of car in 2016 = 500 + 400 + 600 = 1500
Percentage of production increase of from 2015 to 2016 = (400/1100) × 100 = 400/11 %
Total Production of car in 2017 = 600 + 500 + 700 = 1800
Percentage of production increase of from 2016 to 2017 = (300/1500) × 100 = 20%
Total Production of car in 2018 = 700 + 500 + 800 = 2000
Percentage of production increase of from 2017 to 2018 = (200/1800) × 100 = 11.11%
∴ The percentage increase in production of cars minimum as compared to its previous year in 2018.
Study the given graph carefully and answer the question that follows.

On the basis of this multiple bar graph, what is the change in the number of Literature books from the year 2020 to the year 2023?
Study the given graph carefully and answer the question that follows. The graph shows the demand and production of different companies.

Lowest production is what percentage of the highest demand?
Study the given bar-graph and answer the question that follows.

Which age group has the least number of people?
Study the following chart and answer the question that follows:

What is the difference in the imports by company X in the years 2019 and 2021?
The ratio of the quantities imported of steel and iron in 2018 was 3 ∶ 2 and in 2020 it was 1 ∶ 1. The ratio of the quantities imported of steel in 2018 and 2020 was 4 ∶ 3. What was the ratio of the quantities imported of iron in 2018 and 2020?