Hard SOF International Mathematics Olympiad (IMO) · IMO Level 1 · . Sample A quadrilateral has angles 90°, 80°, 100° and x. Find x. A 80° B 90° C 100° D 110° Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
Solve the pair of linear equations for x: 1x + 3y = 12 and 5x + -1y = -20. SOF International Mathematics Olympiad (IMO) . Easy · Mathematics · 2024 See Explanation
Find the midpoint of the line segment joining P(-8, -3) and Q(10, -1). SOF International Mathematics Olympiad (IMO) . Easy · Mathematics · 2024 See Explanation
The angle of elevation of the top of a tower from a point on the ground 10 m away from its base is 60°. Find the height of the tower. (Use √3 = 1.73 where needed) SOF International Mathematics Olympiad (IMO) . Easy · Mathematics · 2024 See Explanation
Find the next number in the series: 6, 12, 24, 48, ? SOF International Mathematics Olympiad (IMO) . Easy · Mathematics · 2026 See Explanation
Find the roots of the quadratic equation x² + (2)x + (0) = 0. SOF International Mathematics Olympiad (IMO) . Hard · Mathematics · 2026 See Explanation