Gear Ratios

If you have a DRIVER gear that has 10 teeth driving a DRIVEN gear that has 20 teeth, what is the gear ratio?

• 2:1

• 1:2

• 4:3

• 1:1

If you have a DRIVER gear that has 5 teeth driving a DRIVEN gear that has 50 teeth, what is the gear ratio?

• 10:1

• 1:10

• 5:1

• 1:5

If you have a DRIVER gear that has 7 teeth driving a DRIVEN gear that has 21 teeth, what is the gear ratio?

• 3:1

• 1:3

• 3:4

• 4:3

• 2:3

If you have a DRIVER gear that has 8 teeth driving a DRIVEN gear that has 24 teeth, what is the gear ratio?

• 3:1

• 1:3

• 3:4

• 4:3

• 2:3

If you have a DRIVER gear that has 7 teeth driving a DRIVEN gear that has 14 teeth, what is the gear ratio?

• 2:1

• 1:2

• 4:3

• 3:4

If you have a DRIVER gear that has 20 teeth driving a DRIVEN gear that has 10 teeth, what is the gear ratio?

• 2:1

• 1:2

• 4:3

• 1:1

If you have a DRIVER gear that has 100 teeth driving a DRIVEN gear that has 10 teeth, what is the gear ratio?

• 10:1

• 1:10

• 5:1

• 1:5

If you have a DRIVER gear that has 21 teeth driving a DRIVEN gear that has 7 teeth, what is the gear ratio?

• 3:1

• 1:3

• 3:4

• 4:3

• 2:3

If you have a DRIVER gear that has 24 teeth driving a DRIVEN gear that has 8 teeth, what is the gear ratio?

• 3:1

• 1:3

• 3:4

• 4:3

• 2:3

If you have a DRIVER gear that has 14 teeth driving a DRIVEN gear that has 7 teeth, what is the gear ratio?

• 2:1

• 1:2

• 4:3

• 3:4