Time, Speed & Distance
Aptitude

 Back to Questions
Q.

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?

 A.

150 sec

 B.

450 sec

 C.

750 sec

 D.

825 sec

 Hide Ans

Solution:
Option(C) is correct

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

$⇒ y=150$ sec and $x=125$ sec

\(x+19=\dfrac{960y}{1000}\text{ and }\)

\(\dfrac{960x}{1000}+30=y\)

$⇒ y=150$ sec and $x=125$ sec

Answer \(=\dfrac{150}{1000}\times 500\)

750 sec


(1) Comment(s)


Preetham
 ()

how y=150 sec and x-125 sec..can u explain me his problem