Ballpark #44 — answers
September 7, 2026 · five estimation questions and their accepted values
Question 1
How many days can a camel go without drinking water?
15
Longer in cool weather, far less in desert heat.
Question 2
How tall are the carved faces on Mount Rushmore, in meters?
18
Question 3
How many letters are in the Hawaiian alphabet?
13
Twelve letters plus the okina.
Question 4
How many liters of fuel does a Boeing 747-400 hold?
216000
Question 5
How wide is the Grand Canyon at its widest, in kilometers?
29
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