Answers

2015-05-30T14:29:11+05:30
Average speed= v1 + v2/t1+t2
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2015-05-31T12:28:32+05:30
Distance=speed/time
so, v1/t=d1
and v2/t=d2.
average speed=total distance/ total time
so,d1+d2/t+t
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