Based on the data representing the export tariff on rice (in per cent) of different countries given below, between which of the following pairs of countries is the difference in export tariff the minimum? CountryExport Tariff (%)Mexico350%Japan150%Brazil90%Spain89%England50%China45%Italy45%India30%

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?