In a circular path of 619 m, Preeti and Rani start walking in opposite directions from the same point at the speeds of 2.85 km/h and 5.4 km/h, respectively. When will they meet for the first time?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. After 4.50 minutes.
Relative speed = 2.85 + 5.4 = 8.25 km/hr
⇒ 8.25 × = 2.29 m/sec
Time = Distance/Speed
Time = = 270.30 ∼ 270 seconds = 4.50 minutes