What is the minimum number of rotations Gear 1 requires to return to this starting position?
Two gears are shown below in their starting position.
Gear 1 has 6 teeth
Gear 2 has 8 teeth
As Gear 1 turns, it cause Gear 2 to turn at a different rate
Gear 1 is rotated until the two gears are back to this starting position??
What is the minimum number of rotations Gear 1 requires to return to this starting position?
A. 48 rotations
B. 24 rotations
C. 4 rotations
D. 2 rotations
I know the answer is C, but I chose D and I do not get how to get that number...
Thanks
Two gears are shown below in their starting position.
Gear 1 has 6 teeth
Gear 2 has 8 teeth
As Gear 1 turns, it cause Gear 2 to turn at a different rate
Gear 1 is rotated until the two gears are back to this starting position??
What is the minimum number of rotations Gear 1 requires to return to this starting position?
A. 48 rotations
B. 24 rotations
C. 4 rotations
D. 2 rotations
I know the answer is C, but I chose D and I do not get how to get that number...
Thanks
1 Answer
We can figure this out by finding the LCF.
Explanation:
gear 1 will be
gear 2 will be
.
- gear 1 turn rotations.
gear 1 moves in a rotation of 6
- gear 2 turn rotations
gear 2 moves in a rotation of 8
factors that make up
we can remove