A vehicle travels at the rate of 80 kmph. What distance will will it travel in 15 minutes ?

Answer: Option A

Speed of vehicle = 80 kmph
$$\begin{array}{rl}& =\left(\frac{80\times 1000}{60}\right)\text{m/min}\\ & =\left(\frac{4000}{3}\right)\text{m/min}\end{array}$$
∴ Required distance :
$$\begin{array}{rl}& =\frac{4000}{3}\times 15\\ & =20000\text{ metres}\end{array}$$