Runner $Y$ leaves the starting line at 12:00. Five minutes later runner $X$ leaves from the same place and catches up to runner $Y$ at 12:07. Four minutes later, runner $X$ is one hundred metres ahead of runner $Y$. What is the speed of each runner in $\mathrm{m} / \mathrm{s}$ ?

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The Answer of Runner $Y$ leaves the starting line at 12:00. Five minutes later runner $X$ leaves from the same place and catches up to runner $Y$ at 12:07. Four minutes later, runner $X$ is one hundred metres ahead of runner $Y$. What is the speed of each runner in $\mathrm{m} / \mathrm{s}$ ?

Runner YYY Leaves the Starting Line at 12:00 XXX Leaves from the Same Place and Catches Up to Runner

Runner $Y$ Leaves the Starting Line at 12:00 $X$ Leaves from the Same Place and Catches Up to Runner