Question

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?

Answer 1

Answer:

750 sec

Step-by-step explanation:

If Abhishek takes x seconds and Bharti takes y seconds to run 1 km, then:

⇒y=150 sec and x=125 sec

x+19=960y/1000 and  

960x/1000+30=y

⇒y=150 sec and x=125 sec

Answer =150/1000×500

= 750 sec