IMO Practice Test — Metric & Customary Conversion
6 Questions • 25 min • Olympiad level
25:00
Question 1 of 6
hard
How many seconds are there in 5 minutes?
50
150
300
500
Explanation: 5 × 60 = 300 seconds.
Question 2 of 6
hard
A tank holds 10 L. It has 6 L 500 ml. How much more to fill it?
3 L 500 ml
4 L
3 L
4 L 500 ml
Explanation: 10 L − 6 L 500 ml = 3 L 500 ml.
Question 3 of 6
hard
How many hours are there in 2 days?
24
36
48
60
Explanation: 2 × 24 = 48 hours.
Question 4 of 6
medium
Which is the LONGEST?
1 km
900 m
1500 m
500 m
Explanation: 1500 m > 1 km (1000 m) > 900 m > 500 m.
Question 5 of 6
hard
A 2 km road: a car has driven 1500 m. How much is left?
500 m
1500 m
300 m
1000 m
Explanation: 2 km = 2000 m; 2000 − 1500 = 500 m.
Question 6 of 6
hard
A wall is 5 m long. How many 50 cm tiles fit along it?
5
10
25
100
Explanation: 5 m = 500 cm; 500 ÷ 50 = 10 tiles.