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.
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Bacteria A moves at 1mm/hr and goes 50mm. Bacteria B moves at 0.0001mm/s and goes 20mm. Which takes less time?