Answers

2015-09-24T00:57:02+05:30


Q1)total time= distance/speed

time= final velocity- initial velocity

40-30=10

distance = 30 km

av velocity= 10km/h

30/10

time taken is 3 hours

Q2)speed=distance/time

speed = final- initial

40-30

10km/h += av apeed

0