A scooter travels 120km in 3 hours and a train travels 120km in 2 hours. Find the ratio of their speeds.
(Hint : Speed =
)
Speed = 
Distance covered by scooter = 120 km
Time taken by scooter = 3 hours
Speed of scooter = 
⇒ speed of scooter = 
= 40 km/hour
Distance covered by train = 120 km
Time taken by train = 2 hours
Speed of train = 
⇒ speed of train = 
= 60 km/hour
Ratio of their speed = 
⇒ Ratio of their speed = 
Divide numerator and denominator by 20
⇒ Ratio of their speed = 
58