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Speed - 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.


Bug A crawls at 1cm/s and goes 30cm. Bug B crawls at 30cm/min and goes 40cm. Which takes less time?

Speed - Which is Less Time - Changed Time Units Worksheet

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Math worksheet on 'Speed - Which is Less Time - Changed Time 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
Car A drives at 1km/min and goes 50km. Car B drives at 30km/hr and goes 30km. Which takes less time?
a
Car A
b
Car B
2
Bug A crawls at 1m/hr and goes 40m. Bug B crawls at 0.01m/min and goes 20m. Which takes less time?
a
Bug A
b
Bug B
3
Bacteria A moves at 1cm/d and goes 40cm. Bacteria B moves at 0.0005cm/min and goes 30cm. Which takes less time?
a
Bacteria A
b
Bacteria B
4
Rocket A flies at 1km/s and goes 50km. Rocket B flies at 60km/min and goes 40km. Which takes less time?
a
Rocket A
b
Rocket B
5
Bacteria A moves at 1mm/hr and goes 50mm. Bacteria B moves at 0.0001mm/s and goes 20mm. Which takes less time?
a
Bacteria A
b
Bacteria B
6
Bug A crawls at 1m/min and goes 40m. Bug B crawls at 0.01m/s and goes 40m. Which takes less time?
a
Bug A
b
Bug B
7
Bacteria A moves at 1m/d and goes 20m. Bacteria B moves at 0.02m/hr and goes 30m. Which takes less time?
a
Bacteria A
b
Bacteria B