SOF International Mathematics Olympiad (IMO)
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IMO Level 1
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2026
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Sample
Find the median of the data set: 9, 21, 24, 26, 34, 37, 42
Explanation
Explanation
First arrange the data in ascending order: 9, 21, 24, 26, 34, 37, 42 (there are 7 values, an odd number). The median is the middle value, i.e. the 4th value, which is 26.
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.