Answers

2016-02-15T19:35:48+05:30
SPEED= DISTANCE /TIME
= 60/(40/60)Hr =60 x 60/40 =90km/hr
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  • Brainly User
2016-02-15T19:49:48+05:30
We know speed=distance/time..so..here we have distance=60km..and time=40mins=40/60hrs..so speed=60/40/60=>60*60/40=>3600/40=>90km/hr(ans)
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