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

This math topic focuses on calculating which of two scenarios requires less time, given different speeds and distances. The worksheet consists of problems that require conversion between units of speed and distance, such as mm/min to cm/d, cm/ms to m/s, and m/hr to mm/s. Students are tasked to determine which of the two entities, like bacteria, cars, bugs, or horses, traverses their assigned distance in less time by applying their understanding of speed, distance, and time calculations alongside unit conversions. This is an advanced exercise in dealing with complex unit changes and time calculations.

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

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Which is Less Time - Changed Both Units

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Plane A flies at 1m/ms and goes 40m. Plane B flies at 1,000,000mm/s and goes 50,000mm. Which takes less time?

Speed - Which is Less Time - Changed Both Units Worksheet

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Math worksheet on 'Speed - Which is Less Time - Changed Both Units (Level 3)'. Part of a broader unit on 'Speed, Distance, and Time - Advanced' Learn online: app.mobius.academy/math/units/speed_distance_time_advanced/
1
Bacteria A moves at 1mm/min and goes 40mm. Bacteria B moves at 72cm/d and goes 3cm. Which takes less time?
a
Bacteria A
b
Bacteria B
2
Bacteria A moves at 1m/d and goes 50m. Bacteria B moves at 14mm/hr and goes 20,000mm. Which takes less time?
a
Bacteria A
b
Bacteria B
3
Horse A trots at 1km/hr and goes 40km. Horse B trots at 0.1m/s and goes 20,000m. Which takes less time?
a
Horse A
b
Horse B
4
Car A drives at 1cm/ms and goes 30cm. Car B drives at 3m/s and goes 0.2m. Which takes less time?
a
Car A
b
Car B
5
Bacteria A moves at 1cm/min and goes 30cm. Bacteria B moves at 10,800mm/d and goes 300mm. Which takes less time?
a
Bacteria A
b
Bacteria B
6
Plane A flies at 1m/ms and goes 40m. Plane B flies at 1,000,000mm/s and goes 50,000mm. Which takes less time?
a
Plane A
b
Plane B
7
Bacteria A moves at 1mm/hr and goes 40mm. Bacteria B moves at 1cm/d and goes 3cm. Which takes less time?
a
Bacteria A
b
Bacteria B