engineering recuitment NMDC Maintenance Assistant Fitter 2021 Mock Test Quantitative Aptitude Speed Time and Distance
A sailor sails his boat and covers a distance of 24 km in 3 hours downstream. When he sails his boat to cover the same distance upstream, it takes 12 hours. What is the speed of the boat?
1
4 km/hr
2
5 km/hr
3
8 km/hr
4
3 km/hr