Physics - Kinematics Question with Solution | TestHub

A body covers one-third of the distance with speed $v_1$. For the remaining distance, it travels for half of the time with speed $v_2$ and another half of the time with speed $v_3$. If average speed is $\frac{{\mathrm{nv}}_1\left({\mathrm{v}}_2+{\mathrm{v}}_3\right)}{4{\mathrm{v}}_1+{\mathrm{v}}_2+{\mathrm{v}}_3}$. Find n.