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

This math topic focuses on calculating and comparing travel times when different speeds and distances are involved. Each problem requires converting varied units of speed (e.g., km/min, m/s, cm/ms) to determine which of two options results in a shorter travel time. This set of exercises is advanced, incorporating both speed conversions and time calculations as part of broader lessons on speed, distance, and time.

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 Time Units Worksheet

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Speed - Which is Less Time - Changed Time Units
1
Car A drives at 0.57dam/s and goes 40dam. Car B drives at 60dam/min and goes 50dam. Which takes less time?
a
Car A
b
Car B
2
Bacteria A moves at 0.38mm/hr and goes 30mm. Bacteria B moves at 0.016667mm/min and goes 50mm. Which takes less time?
a
Bacteria A
b
Bacteria B
3
Bug A crawls at 0.38cm/s and goes 30cm. Bug B crawls at 2,880cm/hr and goes 40cm. Which takes less time?
a
Bug A
b
Bug B
4
Bacteria A moves at 0.5cm/d and goes 40cm. Bacteria B moves at 0.0002cm/min and goes 20cm. Which takes less time?
a
Bacteria A
b
Bacteria B
5
Bacteria A moves at 0.5mm/hr and goes 20mm. Bacteria B moves at 0.00017mm/s and goes 50mm. Which takes less time?
a
Bacteria A
b
Bacteria B
6
Bacteria A moves at 0.38mm/min and goes 30mm. Bacteria B moves at 0.01mm/s and goes 50mm. Which takes less time?
a
Bacteria A
b
Bacteria B
7
Bug A crawls at 0.83cm/s and goes 50cm. Bug B crawls at 0.001cm/ms and goes 40cm. Which takes less time?
a
Bug A
b
Bug B
8
Car A drives at 0.4hm/s and goes 20hm. Car B drives at 0.0008hm/ms and goes 50hm. Which takes less time?
a
Car A
b
Car B