Solve the following word problems. Each question carries 4 marks. (8 marks)
a) India has a population of 1,37,23,81,243 and China has a population of
1,43,62,45,697. The total world population is 7,74,96,49,345. Is the population of
the world more than double the population of India and China combined?
b) Find the prime factorisation of the following:
(0) 2730
(ii) 860
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Answer:
A new UN study of global population trends predicts that India will overtake China to become the world's most populous nation by 2022.
The report also says that Nigeria will replace the US as the world's third most populous country by around 2050.
Africa is expected to account for more than half of the world's population growth over the next 35 years.
The current world population of 7.3 billion will reach 9.7 billion in 2050 and 11.2 billion in 2100, it predicts.
The new projection has India overtaking China's population six years earlier than previously predicted.
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