Question

an automobile moves at 60 kmph for 3km at 70 kmph for the next three came find the average speed of the automobile​

Answer 1

Answer:

Speed of car in 3 minutes = 60 km/h

Distance covered = speed × Time taken

60 minutes = 1 hour

3 minutes = 0.05 hour

Distance covered = 240×0.05 = 12 km

Speed of car in next 3 minutes = 70 km/h

Distance covered = 70×0.05 = 3.5 km

∴ Total distance covered = (12+3.5)km = 15.5 km

Right!