Anil, Sunil, and Ravi run along a circular path of length $3 \; \text{km},$ starting from the same point at the same time, and going in the clockwise direction. If they run at speed of $15 \; \text{km/hr}, 10 \; \text{km/hr},$ and $8 \; \text{km/hr},$ respectively, how much distance in $\text{km}$ will Ravi have run when Anil and Sunil meet again for the first time at the starting point $?$
- $4.2$
- $5.2$
- $4.8$
- $4.6$