On a section of a highway the speed-density relationship is linear and is given by $v=\left[80-\frac{2}{3} k\right]$; where $v$ is in $\mathrm{km} / \mathrm{h}$ and $k$ is in veh $/ \mathrm{km}$. The capacity (in veh/h) of this section of the highway would be

(A) 1200

(B) 2400

(C) 4800

(D) 9600

On a section of a highway the speed-density relationship is linear and is given by $v=\left[80-\frac{2}{3} k\right]$; where $v$ is in $\mathrm{km} / \mathrm{h}$ and $k$ is in veh $/ \mathrm{km}$. The capacity (in veh/h) of this section of the highway would be

(A) 1200

(B) 2400

(C) 4800

(D) 9600

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