Solving a Quadratic Equation by Factorization Method
A bike travel...
Question
A bike travels a distance of 200 km at a constant speed. Ifthe speed of the bike is increased by 5 kmph, the journey would have taken 2 hours less. What is the speed of the bike?
A
30 kmph
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B
25 kmph
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C
20 kmph
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D
15 kmph
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Solution
The correct option is C 20 kmph Let the speed of the bike be x kmph. Clearly, 200x−200x+5=2⟹x=20.