Question

4. A passenger train takes 3 hours less for a journey of 360 km if its speed is increased by 20 km/hr from its usual speed. We need to find its usual quadratic speed. Represent the problem situation in the form of a
equation.​

Answer 1

Answer:

It is given that train takes 3 hours less for a journey of 360 km if its speed is increased by 10 km/hr from the usual speed. Divide both sides by 3. Since speed can not be negative, therefore the usual speed of train is 30 km/hr.

Step-by-step explanation:

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