The following table shows the yearly production of scooters (in thousands) in different factories. In which year was the total production of scooters of all factories equal to the yearly average number of scooters produced during 2015-2019? Factory / Year20152016201720182019A2530152316B1424121720C2041172113D4039353241E1615221512Total115149101108102

In a data table, the production of rice for country Q and country R is 60 lakh tons and 54 lakh tons respectively. The production of wheat for country S and country T is 52 lakh tons and 52 lakh tons respectively. What is the ratio of the total production of rice of countries Q and R to the total production of wheat of countries S and T?

In a survey of 5 countries (P, Q, R, S, T), the rice production values are 40, 60, 54, 70, and 51 lakh tons respectively. What is the average production of rice (in lakh tons) across all 5 countries?