Based on historical election data, the electorate in 2013 was 355,590,700 across 542 constituencies, and in 2018 it grew to 605,884,103 across 543 constituencies. By approximately how much did the average electorate per constituency increase from 2013 to 2018?

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?