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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Which is Less Time - Changed Time Units

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Bacteria A moves at 0.5cm/d and goes 40cm. Bacteria B moves at 0.0002cm/min and goes 20cm. Which takes less time?

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