Cycling speed model
Cycling speed model
Secondary 2
6 marks
TGM Original Questions
Optional extension
A cyclist covers \(140\) km in \((x-4)\) h at \((3x+1)\) km/h.
- Form and simplify a quadratic equation.[2]
- Solve it.[2]
- Find the cyclist’s average speed.[2]
Solution:
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Answer:(i) \(3x^2-11x-144=0\) (ii) \(x=9\) (iii) \(28\) km/h.
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