Ballpark #7 — answers
August 1, 2026 · five estimation questions and their accepted values
Question 1
How many chromosomes are in a human cell?
46
Question 2
How tall is the Great Pyramid of Giza today, in meters?
138.5
It was ~146.6 m when built.
Question 3
How many countries are in Africa?
54
Question 4
What is the fastest wind gust ever recorded (outside a tornado), in km/h?
407
Barrow Island, Australia, 1996.
Question 5
What is the maximum weight of a bowling ball, in kilograms?
7.26
16 pounds.
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