Deepak has to cover a distance of 120km in 2 hours.he drives inthe beginning at 50km/hr for60km.at what speed should he drive for the rest of the journey,so that he reaches on time?(chaptername:direct and inverse variation)
Answers
Answered by
10
He had covered the distance 60km at the speed of 50 km per
Hour so the time he spend=60/50=1.2hours
Time left=2-1.2=0.8
Remaining distance =120-60=60
So speed needed=60/0.8=75
Hour so the time he spend=60/50=1.2hours
Time left=2-1.2=0.8
Remaining distance =120-60=60
So speed needed=60/0.8=75
Similar questions