Two athletes X and Y are jogging on a circular path whose circumference is 500 m. Athlete X jogs at a speed of 18 km/h and Y jog at 9 km/h, jogging in opposite directions. The time at which they will meet for the first time is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 66.66 s.
Relative speed of X and Y running in same direction = (18 + 9) = 27 km/hr
Speed in m/sec = 27 × 5/18 = 15/2 m/sec
Time = Distance/Speed
⇒ 500/(15/2) = 200/3 = 66.66