Answers

2014-06-10T22:41:58+05:30
Let the speed for the next time be x.
therfore (30+x)/2=60
30+x=120
therefore x=120-30
therfore x=90 km/hr
Since average of 2 speeds wil be (speed1+speed2)/2

3 4 3
if 2 or more people give the same ans then obviously it has to be correct
kk
i gave a lil long lecture...sorry fr dat
hmmm.....its kkk
hehe:)
2014-06-10T22:55:02+05:30
Total distance = 30+90=120
if avg. spd is 60 km/h then total time to cover the dist. is 2 hour.
avg spd.= (30+x)/2

distance=spd * time

120=(30+x)/2*2
120=30+x
x=120-30=90
i.e spd = 90 km/h
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which i have answered...!!!!!
YES
no sorry ithin k there's no problem....
whats the problem
no deres no problem