Home Practice Question 3287
Hard
 SOF International Mathematics Olympiad (IMO) · IMO Level 1 · 2022 . Sample

Find the mean of 23, 25, 27, 29, 31.

Related Questions

The average of 5 numbers is 18. If one of the numbers, 12, is removed, what is the average of the remaining numbers?

SOF International Mathematics Olympiad (IMO) .
Medium
· Mathematics · 2026
See Explanation

Evaluate: (0.3 × 0.4) ÷ 0.02

SOF International Mathematics Olympiad (IMO) .
Medium
· Mathematics · 2026
See Explanation

If a : b = 2 : 3 and b : c = 4 : 5, then a : c is equal to:

SOF International Mathematics Olympiad (IMO) .
Hard
· Mathematics · 2026
See Explanation

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