Two persons start running simultaneously around a circular track of length 600 m from the same point at speeds of 15 km/hr and 25 km/hr. When will they meet for the first time any where on the track if they are moving in opposite directions?
Choose the correct choice from the following:  A) 16 seconds  B) 18 seconds  C) 27 seconds  D) 54 seconds  E) 60 seconds
Time taken to meet for the first time anywhere on the track   = length of the track / relative speed   = 600 / (15 + 25)5/18 = 600* 18 / 40 * 5   = 54 seconds.   Answer:54 seconds
<result>D</result>
Two persons start running simultaneously around a circular track of length 600 m from the same point at speeds of 15 km/hr and 25 km/hr. When will they meet for the first time any where on the track if they are moving in opposite directions?