IMO Practice Test — Data Handling
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
medium
Pictograph: each star=5 students. Tuesday=6 stars. How many on Tuesday?
6
25
30
36
Explanation: 6x5=30 students
Question 2 of 6
medium
Colors: Red=8 Blue=12 Green=5. How many more Blue than Red?
2
4
6
8
Explanation: 12-8=4
Question 3 of 6
hard
Data: 5,3,7,5,9,5,3. Mode?
3
5
7
9
Explanation: 5 appears 3 times = mode
Question 4 of 6
medium
Rainfall: Jan=30 Feb=20 Mar=50 Apr=40mm. Total?
120 mm
130 mm
140 mm
150 mm
Explanation: 30+20+50+40=140 mm
Question 5 of 6
hard
50 students: Maths=20 English=15 Science=15. Fraction likes Maths?
1/5
2/5
1/4
3/10
Explanation: 20/50=2/5
Question 6 of 6
medium
Tally: Dogs=7 Cats=8 Birds=4. Least popular?
Dogs
Cats
Birds
Equal
Explanation: Birds=4 least popular