-advertisement-
3%

50 bats are hanging from a tree. 5 more join, and 15 fly away. What percentage of bats remains of the original 50?

Fact Lab

-advertisement-

Interesting fact:

Relative to its home planet, the Moon is the largest satellite in the solar system. Due to this, several planetologists—as well as legendary late science-fiction author Isaac Asimov—consider the Earth and the Moon binary planets.