Question

A car can travel at 20000 meter per sector 2 hours at 90 kilometer per hour for next 3 hours,and finally for 200000 centimeter per second what is the car average velocity in km/hr for entire period

Answer 1

$$\begin{array}{l} V_{1} = 20000 \frac{\mathrm{m}}{\mathrm{s}} t_{1} = 2 \text{ hours}, S_{1} = V_{1} * t_{1} \\ V_{2} = 90 \frac{\mathrm{km}}{\mathrm{h}}, t_{2} = 3 \text{ hours}, S_{2} = V_{2} * t_{2} \\ V_{3} = 200000 \frac{\mathrm{cm}}{\mathrm{s}}, S_{3} = V_{3} * t_{3} \\ \end{array}$$

**ANSWER:**

Average velocity is

$$V = \frac{S_{1} + S_{2} + S_{3}}{t_{1} + t_{2} + t_{2}}$$