SOF International Mathematics Olympiad (IMO)
·
IMO Level 1
·
2026
.
Sample
What is the value of tan 30°?
Explanation
Explanation
This is a standard trigonometric ratio from the trigonometric values table for 0°, 30°, 45°, 60°, 90°. tan 30° = 1/√3, a value worth memorising directly.
PRO TIP
Re-check your working by substituting the answer back into the original question.
Related Questions
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?
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.