2 balls can complete a full rotation in 120 minutes. How many balls can complete a full rotation in 180 minutes

2 balls ... 120 minutes

x balls = ? ... 180 minutes

If you would like to know how many balls can complete a full rotation in 180 minutes, you can calculate this using the following steps:

2 * 180 = 120 * x / 120

x = 2 * 180 / 120

x = 3 balls

The correct result would be 3 balls.

We need to find a unit rate. A unit rate determines how much per something.

2 balls in 120 minutes

Set up a proportion

2/120 = x/180

x is the value we need to solve for.

Cross multiply

2*180 = 120x

360 = 120x

120x/120 = 360/120

x = 3

Our answer is that 3 balls can complete a full rotation in 180 minutes

Final answer: 3 balls can complete a full rotation in 180 minutes.