Directions: Study the following information carefully and answer based on it.

Qatar airlines offer only 2 Aircrafts namely B767 and A320 for all of its passengers. Number of passengers who travelled from A320 in 2018 was 40% less than that in 2020. Number of passengers who travelled from B767 in 2018 was 25% of number of people who travelled from B767 during 3 years (2018, 2019 and 2020). Ratio of number of passengers who travelled from B767 in 2019 and 2020 is 4:5 respectively. Number of passengers who travelled from A320 in 2019 was 50% more than the number of passengers who travelled from B767 in 2018. Total number of passengers who travelled from A320 during 3 years (2018, 2019 and 2020) was 5800. In 2019 number of passengers who travelled from A320 was 200 more than that from B767.