Two cars meeting between towns

Two cars meeting between towns

Secondary 2
TGM Original Questions

Car A and Car B leave towns 210 km apart at the same time and travel towards each other. They meet after 1.5 hours. Car B is 20 km/h slower than Car A. Let their speeds be \(x\) and \(y\) km/h.

  1. Form two equations.
  2. Find \(x,y\).
  3. Find, to the nearest minute, the time Car A takes for the whole 210 km journey.

Solution:

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Answer:(a) \(x+y=140,x-y=20\); (b) \(x=80,y=60\); (c) \(158\) min.

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