A' starts from a point with speed 8 km/hr at 6
a.m. 'b' starts from same point at 8:30
a.m with speed 10km/hr. then b will overtake a
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6hr-8:30hr=2:30hr
8kmph*2:30=20km
10kmph-8kmph=2kmph
20km/2kmph=10hr
8:30hr+10hr=18:30hr
so it is 6:30 pm.
8kmph*2:30=20km
10kmph-8kmph=2kmph
20km/2kmph=10hr
8:30hr+10hr=18:30hr
so it is 6:30 pm.
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