engineering recuitment NMDC Maintenance Assistant Fitter 2021 Mock Test Quantitative Aptitude Speed Time and Distance Relative Speed
A walks around a circular field at the rate of two rounds per hour while B runs around it at the rate of 5 rounds per hour. They start in the same direction from the same point. They shall cross each other for every
1
20 min
2
15 min
3
25 min
4
30 min