Question 64
Mystery of the Balls - Henrique has two urns. The first urn contains only black balls and the second only white balls. Henrique took a number of balls from the first urn and placed them on the second. Then he took the same number of balls from the second urn and placed them on the first. After that the number of white balls in the first urn is greater, less than or equal to the number of black balls in the second urn?