Jatin's father starts off to drop Jatin at his school
9.2 km away driving at 30 km/h. After 4 minutes, Jatin
tells his father that he has to reach school in another
10 minutes. At what speed must Jatin's father drive to
reach the school on time?
Answers
Answered by
6
in 30km/h 4 minutes he cover the distance of
30*(4/60)=2km
balance 9.2-2= 7.2
in 10 minutes he reached in school then the speed is
distance /time
7.2/(10/60)=43.2km/h
Similar questions