Hard SOF International Mathematics Olympiad (IMO) · IMO Level 1 · . Sample The area of a triangle with base 14 cm and height 9 cm is: A 63 cm² B 72 cm² C 126 cm² D 144 cm² Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
Two concentric circles have radii 5 cm and 3 cm. A chord of the larger circle touches the smaller circle. Find the length of the chord. SOF International Mathematics Olympiad (IMO) . Hard · Mathematics · 2026 See Explanation
Consider the data: 3, 5, 7, 5, 9, 5, 11, 7. I. The mode is 5. II. The median is 6. III. The mean is 7. Which of the statements are correct? SOF International Mathematics Olympiad (IMO) . Medium · Mathematics · 2026 See Explanation
The midpoint of the line segment joining A(2, −3) and B(x, y) is M(5, 1). Find the coordinates of B. SOF International Mathematics Olympiad (IMO) . Medium · Mathematics · 2026 See Explanation
A shopkeeper marks a watch at ₹1,000 and allows a 10% discount. Even after the discount he earns a profit of 20% on the cost price. Find the cost price of the watch. SOF International Mathematics Olympiad (IMO) . Hard · Mathematics · 2026 See Explanation
Which of the following fractions is the greatest: 5/6, 7/9, 3/4, 11/12? SOF International Mathematics Olympiad (IMO) . Easy · Mathematics · 2026 See Explanation