In a school, the number of boys in Class B and Class D are 60 and 94 respectively, while the number of girls in Class A and Class C are 52 and 70 respectively. Find the ratio of the total boys in Classes B and D together to the total girls in Classes A and C together.

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?