Which is Less Time - Changed Both Units (Level 1)

This math topic explores problems related to calculating the time taken by different creatures (bugs and bacteria) to travel specified distances at given speeds. The scenarios require conversion between different units of speed and distance (such as cm/min, m/s, mm/hr, and cm/d) to determine which creature completes its journey in less time. This set of problems is advanced and part of a broader unit on Speed, Distance, and Time, designed to challenge understanding and application of these concepts in varying contexts.

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 Both Units Worksheet

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Speed - Which is Less Time - Changed Both Units
1
Bacteria A moves at 0.5dm/hr and goes 3dm. Bacteria B moves at 0.13cm/min and goes 40cm. Which takes less time?
a
Bacteria A
b
Bacteria B
2
Bug A crawls at 0.83m/min and goes 5m. Bug B crawls at 0.26hm/hr and goes 0.03hm. Which takes less time?
a
Bug A
b
Bug B
3
Bug A crawls at 0.83cm/min and goes 5cm. Bug B crawls at 225mm/hr and goes 30mm. Which takes less time?
a
Bug A
b
Bug B
4
Bug A crawls at 0.75dm/s and goes 3dm. Bug B crawls at 6,000mm/min and goes 500mm. Which takes less time?
a
Bug A
b
Bug B
5
Bug A crawls at 0.57hm/hr and goes 4hm. Bug B crawls at 0.001km/min and goes 0.5km. Which takes less time?
a
Bug A
b
Bug B
6
Horse A trots at 0.5hm/min and goes 4hm. Horse B trots at 4.29km/hr and goes 0.5km. Which takes less time?
a
Horse A
b
Horse B
7
Horse A trots at 0.33hm/min and goes 2hm. Horse B trots at 1.25m/s and goes 300m. Which takes less time?
a
Horse A
b
Horse B
8
Bug A crawls at 1cm/s and goes 5cm. Bug B crawls at 0.45m/min and goes 0.03m. Which takes less time?
a
Bug A
b
Bug B