Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
50 hikers participated in an orienteering event during summer. 23 were sunburnt, 22 were bitten by ants, and 5 were both sunburnt and bitten by ants.
Browse the problem library