A company's profits for the years 2015 and 2016 were evaluated from its financial data. If the profit earned in 2015 was ₹40 lakhs and the profit earned in 2016 was ₹80 lakhs, find the ratio of the profit in 2015 to that in 2016.

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?