other govt exam India Post Postman & Mail Guard Mock Test 2020 Quantitative Aptitude Speed Time and Distance Relative Speed
Two persons are standing on opposite ends of a field of length 1500 meters. If they are running towards each other at 10 km/hr and 20 km/hr respectively, after how much time will they meet each other?
1
220 seconds
2
120 seconds
3
150 seconds
4
180 seconds