The bar graph shows the population density of 6 countries. Study the diagram and answer the following questions.
What is the ratio of the population densities of country C to country D?
What is the difference in the average number of people living per 1,000 sq km in countries E and F?
Population density of country E is greater than population density of country D by:
If area of country B is 20,00,000 sq km, what is its population?
For the following questions answer them individually
The simplest value of cot 9° cot 27° cot 63° cot 81° is
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