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.

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