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Yolanda and Yoko ran in a 100-yd dash. When Yolanda crossed the finish line, Yoko was ten yd behind her. The girls then repeated the race, with...

Yolanda and Yoko ran in a 100-yd dash. When Yolanda crossed the finish line, Yoko was ten yd behind her. The girls then repeated the race, with Yolanda starting 10 yd behing the starting line. If each girl ran at the same rate as before, who won the race? By how many yards?
I didn't undertand this problem, but someone had explained it to me and showed me what the answer would be. yolanda would win again by 1 yd. because yolanda's rate is 10 yds per 10 sec. and yoko's rate is 9 yds. per 10 sec
Apparently there is a sequel to this problem, which is,
b.Assuming the girls run at the same rate as b4, how behind should yolanda be in order 4 the two 2 finish in a tie. i think yolanda should be at least 2 yds. behind the finish line. Can someone plz check this over 4 me and tell me what the right answer would be???

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