In a kilometer race, If Abhishek gives Bharti a 40 m start, Abhishek wins by 19

In a kilometer race, If Abhishek gives Bharti a 40 m start, Abhishek wins by 19 sec. But if Abhishek gives Bharti a 30 sec start, Bharti wins by 40 m. Find the time taken by Bharti to run 5,000 m?

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