Respuesta :

kapetro
60 sec is the answer I did the math in my head it was easy
kittynyaa
it took her 80 seconds
100 meters=20
so for each 100 meters its 20
so 20×4=80 (why 4 ,because that's how many times she ran 100 meters)
the correct answer is 80 seconds, not 60.

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