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4.5, 3.5
Step-by-step explanation:
speed = distance/time
while moving in opposite direction ,
relative speed of A & B
A + B = 6 /45/60 = 8 km/hr --(1)
relative speed while they were moving in same direction ,
A - B = 6 /6 = 1 km/hr --(2)
on adding (1) and (2) ,we have
2A = 9 => A = 4.5 km/hr
& speed of B = 9 - 4.5 = 3.5 km/hr
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