Which is Less Time - Changed Distance Units (Level 3)

This math topic focuses on comparing the time taken by different entities (like horses, bacteria, and bugs) to travel respective distances at given speeds, where the challenge is heightened by variations in the units of speed and distance (e.g., meters per second vs. millimeters per second, meters vs. millimeters). Each problem requires the learner to determine which entity achieves its goal in less time, thus applying concepts of speed, distance, and time conversions to solve real-world type scenarios in an advanced context.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Speed - Which is Less Time - Changed Distance Units Worksheet

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Speed - Which is Less Time - Changed Distance Units
1
Horse A trots at 0.63km/hr and goes 50km. Horse B trots at 50dam/hr and goes 3,000dam. Which takes less time?
a
Horse A
b
Horse B
2
Bug A crawls at 0.25cm/s and goes 20cm. Bug B crawls at 0.01m/s and goes 0.5m. Which takes less time?
a
Bug A
b
Bug B
3
Horse A trots at 0.33dam/s and goes 20dam. Horse B trots at 0.01km/s and goes 0.5km. Which takes less time?
a
Horse A
b
Horse B
4
Spaceship A flies at 0.63dam/ms and goes 50dam. Spaceship B flies at 8,000mm/ms and goes 400,000mm. Which takes less time?
a
Spaceship A
b
Spaceship B
5
Bacteria A moves at 0.38mm/hr and goes 30mm. Bacteria B moves at 0.000125dam/hr and goes 0.005dam. Which takes less time?
a
Bacteria A
b
Bacteria B
6
Bug A crawls at 0.6mm/s and goes 30mm. Bug B crawls at 0.001m/s and goes 0.02m. Which takes less time?
a
Bug A
b
Bug B
7
Bacteria A moves at 0.63dm/d and goes 50dm. Bacteria B moves at 0.0004286hm/d and goes 0.03hm. Which takes less time?
a
Bacteria A
b
Bacteria B
8
Bug A crawls at 0.4km/d and goes 20km. Bug B crawls at 428.57m/d and goes 30,000m. Which takes less time?
a
Bug A
b
Bug B