Which is Faster - Changed Both Units (Level 3)

This math topic focuses on comparing speeds, involving complex unit conversions in both distance and time dimensions. The questions challenge students to determine which of two entities is moving faster by comparing speeds that are given in different units. Example problems include converting units like meters to kilometers and seconds to minutes or hours, and then computing the speed to see which entity is faster. The content is part of an advanced "Speed, Distance, and Time" unit, requiring a good understanding of unit conversion and basic calculation of speed.

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

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Speed - Which is Faster - Changed Both Units Worksheet

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Speed - Which is Faster - Changed Both Units
1
Horse A trots 30dam in 70s. Horse B trots 5,000dm in 40,000ms. Which is faster?
a
Horse A
b
Horse B
2
Spaceship A flies 50dam in 50ms. Spaceship B flies 300,000mm in 0.05s. Which is faster?
a
Spaceship A
b
Spaceship B
3
Bug A crawls 20dm in 80min. Bug B crawls 0.3dam in 0.0278d. Which is faster?
a
Bug A
b
Bug B
4
Bug A crawls 40dm in 60s. Bug B crawls 0.04hm in 0.0194hr. Which is faster?
a
Bug A
b
Bug B
5
Train A travels 50dm in 60ms. Train B travels 0.5dam in 0.04s. Which is faster?
a
Train A
b
Train B
6
Horse A trots 50dm in 40s. Horse B trots 400cm in 0.67min. Which is faster?
a
Horse A
b
Horse B
7
Bug A crawls 30dm in 50min. Bug B crawls 300cm in 1hr. Which is faster?
a
Bug A
b
Bug B
8
Bug A crawls 20hm in 50d. Bug B crawls 4km in 72,000min. Which is faster?
a
Bug A
b
Bug B