Two trains, each having a speed of 22 km/h, are headed at each other on the same straight track. A bird that can fly 60 km/h flies off the front of one train when they are 70 km apart and heads directly for the other train. On reaching the other train it flies directly back to the first train, and so forth. (We have no idea why a bird would behave in this way.) What is the total distance the bird travels before the trains collide?

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To find the total distance the bird travels before the trains collide, we need to determine the amount of time it takes for the trains to meet.

Let's break down the problem:

1. The relative speed of the two trains is the sum of their individual speeds: 22 km/h + 22 km/h = 44 km/h.

2. We know that the initial distance between the trains is 70 km.

3. To calculate the time it takes for the trains to meet, we can use the formula: Time = Distance / Speed. Therefore, the time it takes for the trains to meet is 70 km / 44 km/h = 1.59 hours.

Now that we have the time it takes for the trains to meet, we can calculate the total distance the bird travels by multiplying its speed (60 km/h) by the time:

Total distance = Speed * Time = 60 km/h * 1.59 hours = 95.4 km.

Therefore, the total distance the bird travels before the trains collide is 95.4 kilometers.