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------------------------------------------------ What is the ratio of the speed of one motor turning at 1,750 revolutions per minute to the speed of a second motor turning at 3,500 revolutions per minute?

A. 1:3
B. 1:2
C. 1.75:3.50
D. 0.75:0.50
E. None of these

Answer :

To find the ratio of the speed of one motor to the other, we'll compare their speeds given in revolutions per minute (RPM).

1. Identify the speeds of the two motors:
- The first motor is turning at 1.750 revolutions per minute.
- The second motor is turning at 3,500 revolutions per minute.

2. Calculate the ratio of their speeds:
- To find the ratio of the first motor's speed to the second motor's speed, divide the speed of the first motor by the speed of the second motor.
- So, the ratio is [tex]\( \frac{1.750}{3,500} \)[/tex].

3. Simplify the ratio:
- Simplifying [tex]\( \frac{1.750}{3,500} \)[/tex] gives us a ratio of 0.5 when reduced to a simpler form.

4. Express the ratio in fraction form:
- This simplified ratio can be expressed in the form 1:2, meaning for every 1 unit of speed of the first motor, the second motor has 2 units of speed.

Therefore, the correct option that represents this ratio is B. 1:2.