Question

one train runing at 75 km in one hour how many distance will be covered by train in 20 minutes

Answer 1

Using the unitary method,

Distance covered in 60 mins = 75 km
=> distance covered in 1 min = 75/60 km
=> distance covered in 20 mins
$= \frac{75}{60} \times 20$
$= \frac{75}{3}$
$= 25$
Therefore, train covers 25 km in 20 min
That's your answer.

Hope it'll help. :-D