At the red light, seven buses of the same length stop in a line. Given that the length of each bus is $$5$$ meters, and the distance between each two adjacent buses is $$2$$ meters, how long is the line? 
Overseas Competition->Knowledge Point->Word Problem Modules->Interval Problems->Straight Line Type with Objects on Both Sides
Among the $$7$$ buses, there are $$7-1=6$$ intervals. So the answer is $$7\times5+2\times6=47$$ meters. 