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Distance=4.5km
=4500m
Speed for sharon= 375m/min
Time for sharon=12min
4500-600=3900(distance by xinyi in 12 min)
3900÷12=325
Ans=325m/min
=4500m
Speed for sharon= 375m/min
Time for sharon=12min
4500-600=3900(distance by xinyi in 12 min)
3900÷12=325
Ans=325m/min
I think its like that
Thanks