Riddle

Weigh an elephant without a massive scale?

Choose an answer

A.Giant bathroom scale
B.Estimate by girth
C.Ask the keeper
D.Water displacement
Hint: It's a 2-word phrase with 17 letters, starting with "W".

Answer

Water displacement

Why this is the answer

Archimedes' Principle: Put the elephant on a boat, mark the water line. Remove elephant and add stones until the boat hits the same line. Weigh the stones.

This riddle is filed under Math Riddles and rated Medium.

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