Question

A man soeed 65 km/hr and reach its destination in 45 mibutes what is tha speed to reach the destination in 36 minutes

Answer 1

Here we know the speed in first statement along with time... So we can find out distance it travelled=65*0.75(here I converted 45 min into hr by dividing with 60... So we get distance= 48.75 km... Now for second statement we know the distance and time... So we can find speed=48.75*60/36 = 81.25 km/hr... Here also i divide 36 min with 60 to convert it into hr.....
Hope you will understand....