Assuming a world population of 8 billion and each standing person occupying about 0.25 m², total area is 8,000,000,000 × 0.25 = 2,000,000,000 m² = 2,000 km², roughly the area of a large city.
Class 9 Ganita Manjari Part 2 book Chapter 14 Question Answer
Chapter 14 Math of Space Surface Area and Volume (Ganita Manjari 2) Solutions
Assuming the current world population is approximately 8 billion people. If tightly packed in a crowd, one standing person occupies roughly 0.25 square metres (4 people per square metre). The total area required would be 8,000,000,000 × 0.25 = 2,000,000,000 m². Converting to square kilometres, this equals 2,000 km², which is approximately comparable to the area of a large metropolitan region like Tokyo or Greater London.
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