Two runners start running simultaneously from the same point on a circular track of length $1200 \text{ m}$ in opposite directions at speeds of $18 \text{ km/h}$ and $27 \text{ km/h}$. After how much time will they meet for the first time?

Options:

• A: $72 \text{ s}$
• B: $80 \text{ s}$
• C: $96 \text{ s}$
• D: $120 \text{ s}$

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