Based on a statistical study of annual company records, the expenditures (in Lakh Rupees) per annum under interest on loans over five consecutive years are recorded as: 23.4 in Year 1, 32.5 in Year 2, 41.6 in Year 3, 36.4 in Year 4, and 49.4 in Year 5. What is the average annual amount of interest on loans paid by the company during this period?

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?