Answers

2014-12-07T12:25:24+05:30
Distance covered by walking ⇒ 2.5*2 = 5km
Distance covered by running⇒ 10km
Total time taken⇒2+3= 5hrs
Total distance covered= 10+5=15km
Average speed=15/5= 3km/h
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2014-12-07T19:56:11+05:30
Total distance =15 km

total time=5hrs

average speed= 15/5
                     =3km/hr
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