Question

if a train runs at 60 km/hr it reaches its destination late by 15 minutes. but, if it runs at 85 kmph it is late by only 4 minutes. find the distance to be covered by the train. ​

Answer 1

Answer:

the distance to be covered by the train =37.4 km

Step-by-step explanation:

let the distance covered by the train be d kms

given : if speed is 60 kn/hr, 15min late

if speed is 85 km/hr , late is 4 min

therefore distance is given by

$d= \frac{s_1 s_2}{s_2-s_1}\times \Delta t$

$d= \frac{60\times85}{25}\times \frac{11}{60}$

d= 37.4 km