Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
On a highway, the total number of vehicles passing is 300. If the number of cars on the highway is twice the number of trucks, find out the total number of trucks on the highway?

### Response:
Let's assume the number of trucks on the road is t.
If we assume that the number of cars on the road is twice the number of trucks on the road, then the number of cars on the road will be 2*t = 2t
The total number of cars and trucks on the road is 2t+t = 300
The number of vehicles on the road is 3t=300
The are t=300/3 trucks on the road.
This means there are t=<<100=100>>100 trucks on the road.
#### 100