List of top General Management Questions on Bar Graph asked in CUET (PG)

Study the following bar-graph carefully and answer the following question. The bar-graph shows the number of pens (in thousand) sold by three shopkeepers X, Y and Z in 5 different years. The total number of pens sold by shopkeeper X in years 2020 and 2022 taken together is what percentage less than the total number of pens sold by shopkeeper Z in years 2021 and 2024 taken together? (correct to two decimal places)
The number of pens sold by shopkeeper Y in the year 2020 is 25% more than the number of pens sold by him in the year 2019 and the number of pens sold by shopkeeper Z in the year 2019 is 20% less than those sold by him in the year 2020. Find the total number of pens sold by the shopkeepers X and Z in the year 2015.