A train travels 72.5 km/hr. How many meters will it travel in 18 minutes?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 21750 meters
Distance = speed × time, with the time in the same unit as the speed. The speed is per hour, so the 18 minutes are written in hours first, and the answer in kilometres is then turned into metres.
Time in hours: \(\displaystyle\frac{18}{60}=0.3\) h
Distance covered in that time \(=72.5\times0.3=21.75\) km
In metres: \(21.75\times1000=\) 21750 m