Medium SOF International Mathematics Olympiad (IMO) · IMO Level 1 · 2013 . Sample Find the mean of 14, 16, 18, 20, 22. A 20 B 18 C 16 D 22 Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
Find the next term in the series: 2, 6, 12, 20, 30, ? SOF International Mathematics Olympiad (IMO) . Easy · Mathematics · 2026 See Explanation
How many factors does the number 36 have? SOF International Mathematics Olympiad (IMO) . Medium · Mathematics · 2026 See Explanation
Fill in the blank: The ratio of boys to girls in a class is 4 : 5. If the class has 36 students in all, the number of girls is ______. SOF International Mathematics Olympiad (IMO) . Medium · Mathematics · 2026 See Explanation
Two fair dice are thrown together. What is the probability that the sum of the numbers on the top faces is 8? SOF International Mathematics Olympiad (IMO) . Medium · Mathematics · 2026 See Explanation
In the system 2x + 3y = 12 and 4x − 3y = 6, which variable is eliminated by simply adding the two equations, and what is the solution? SOF International Mathematics Olympiad (IMO) . Medium · Mathematics · 2026 See Explanation