At 0800, Noel left Town A for Town B while Jane left Town B for Town A. At 1600 their cars passed each other. 5 h later Jane reached Town A but Noel was 240 km away from Town B.
(a) How long after they started would the two drivers passed each other?
(b) Find the distance between the two towns.
8 h
|---------------|
0800 1600
a) It was 8 h.
N [ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ][ ] units [8 u : 5 u]
J [ 240 km ][][][][][][] [][][][][][] [] parts [240 + 5 p : 8 p]
5 x (5 p + 240) --> 8 x 8 p
64 p - 25 p --> 1200
39 p --> 1200
13 p --> 13/39 x 1200 = 400
400 + 240 = 640 km
b) It was 640 km.
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