The given table shows the marks obtained by two friends, Anita and Sunita, in various subjects in a semester exam. What is the difference between their percentages of aggregate marks? | Subjects | Anita Marks | Anita Max Marks | Sunita Marks | Sunita Max Marks | |---|---|---|---|---| | English | 70 | 100 | 85 | 100 | | French | 50 | 100 | 90 | 100 | | Biology | 45 | 50 | 40 | 50 | | Physics | 30 | 50 | 25 | 50 |

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?