A car travels a distance of '$x$' with speed $v_1$ and then same distance '$x$' with speed $v_2$ in the same direction. The average speed of the car is :

Question

${{{v_1}{v_2}} \over {2({v_1} + {v_2})}}$

${{2{v_1}{v_2}} \over {{v_1} + {v_2}}}$

${{2x} \over {{v_1} + {v_2}}}$

${{{v_1} + {v_2}} \over 2}$

Solution

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