请教一个小升初英语奥数题 Three girls A,B and C run in a 100 m race.When A finishes,B is 10 mbehind A and when B finishes C is 20 m behind B.How far in metres was C from A when A finished?(Let’s assume all the athletes run at a constant
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请教一个小升初英语奥数题 Three girls A,B and C run in a 100 m race.When A finishes,B is 10 mbehind A and when B finishes C is 20 m behind B.How far in metres was C from A when A finished?(Let’s assume all the athletes run at a constant
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