Cycling speed model

Cycling speed model

Secondary 2
TGM Original Questions

A cyclist covers \(140\) km in \((x-4)\) h at \((3x+1)\) km/h.

  1. Form and simplify a quadratic equation.
  2. Solve it.
  3. Find the cyclist’s average speed.

Solution:

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Answer:(i) \(3x^2-11x-144=0\); (ii) \(x=9\); (iii) \(28\) km/h.

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