2000 AMC 12 Problems/Problem 3
Problem
Each day, Jenny ate $20%$ (Error compiling LaTeX. Unknown error_msg) of the jellybeans that were in her jar at the beginning of that day. At the end of the second day, remained. How many jellybeans were in the jar originally?
Solution
Since Jenny eats of her jelly beans per day, of her jelly beans remain after one day.
Let be the number of jelly beans in the jar originally.