A train travels 16 km in 20 minutes. What is the speed of the train in km/h?

36 km/h

45 km/h

48 km/h

50 km/h

Convert the time to hours:20 minutes=2060 hours=13 hours

To calculate speed in km/h:

Convert the time to hours:
$20 minutes = \frac{20}{60} hours = \frac{1}{3} hours$
Use the formula for speed:
$text{Speed} = frac{text{Distance}}{text{Time}} = frac{16}{frac{1}{3}} = 16 times 3 = 48 , text{km/h}$

So, the speed of the train is 48 km/h.