Which is Less Time - Changed Distance Units (Level 2)

This math topic focuses on comparing times taken by different moving entities given variable speeds and changed distance units. It includes exercises involving units like meters, centimeters, and millimeters, requiring users to calculate which of two options—each moving at a different speed and over a different distance—takes less time to complete its journey. This involves understanding and converting between varying units of length and speed to determine the quickest route or method, enhancing comprehension of the relationship between speed, distance, and time calculations in advanced scenarios.

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 Distance Units Worksheet

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Speed - Which is Less Time - Changed Distance Units
1
Bug A crawls at 6m/hr and goes 30m. Bug B crawls at 500cm/hr and goes 2,000cm. Which takes less time?
a
Bug A
b
Bug B
2
Bacteria A moves at 5dm/d and goes 30dm. Bacteria B moves at 375mm/d and goes 3,000mm. Which takes less time?
a
Bacteria A
b
Bacteria B
3
Car A drives at 3.33dam/s and goes 20dam. Car B drives at 0.5hm/s and goes 2hm. Which takes less time?
a
Car A
b
Car B
4
Rocket A flies at 2.5m/ms and goes 20m. Rocket B flies at 60dm/ms and goes 300dm. Which takes less time?
a
Rocket A
b
Rocket B
5
Horse A trots at 5hm/hr and goes 40hm. Horse B trots at 0.286km/hr and goes 2km. Which takes less time?
a
Horse A
b
Horse B
6
Rocket A flies at 10dm/ms and goes 50dm. Rocket B flies at 0.04dam/ms and goes 0.3dam. Which takes less time?
a
Rocket A
b
Rocket B
7
Spaceship A flies at 5.71km/s and goes 40km. Spaceship B flies at 125hm/s and goes 500hm. Which takes less time?
a
Spaceship A
b
Spaceship B
8
Bug A crawls at 3.75km/d and goes 30km. Bug B crawls at 400dam/d and goes 2,000dam. Which takes less time?
a
Bug A
b
Bug B