Q. 4 C5.0( 3 Votes )

Represent the following situations in the form of the quadratic equation.

A train travels a distance of 300 km at a constant speed. If the speed of the train 'is increased by 5 km an hour. The journey would have taken two hours less.

Answer :

Let ‘x’ be the speed of the train in km per hour.

Time taken to cover 300 km =


[ .]


Time taken when speed is increased by 5 =


The journey would have taken two hours less when speed is decreased.



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Get To Know About Quadratic Formula42 mins
Quiz | Knowing the Nature of Roots44 mins
Take a Dip Into Quadratic graphs32 mins
Foundation | Practice Important Questions for Foundation54 mins
Nature of Roots of Quadratic EquationsFREE Class
Getting Familiar with Nature of Roots of Quadratic Equations51 mins
Quadratic Equation: Previous Year NTSE Questions32 mins
Champ Quiz | Quadratic Equation33 mins
Champ Quiz | Quadratic Equation48 mins
Balance the Chemical Equations49 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses