The majority of today's office-based jobs require an understanding of numerical information (numbers, tables, charts) and the ability to rationalize them.
Understanding percentages is one of the most important skills for anyone working with numerical information.
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
A brother and sister own equal parts in a company. The minority shareholders have the remaining 12,000 shares or 30% of the company.
How many shares does the sister own?