Question

Abhinav started for the station half a km from his home
walking at 1 km/h to catch the train in time. After 3
minutes he realised that he had forgotten a document at
home and returned with increased, but constant speed to
get it succeded in catching the train. Find his latter speed ​

Answer 1

Answer:

11/9

Step-by-step explanation:

Distance covered in 3 minutes = $3 * ( 1000/60 ) = 50$

Now he has to cover $( 500 + 5)$ m in $( 30/3)$ minutes

Required speed = $( 550/1000)/(27/60) = 11/9$ km/h