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Question
At the end of the 20th century, the world population was approximately 6.1 × 109 people. Express this population in usual form. How would you say this number in words?
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Solution
Given, at the end of the 20th century, the world population was 6.1 × 109 (approx).
People population in usual form = 6.1 × 109 = 6100000000.
Hence, population in usual form was six thousand one hundred million.
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