60% of a number is added to 120, the result is the same number. Find the number?
300
200
400
500
40 is subtracted from 60% of a number, the result is 50. Find the number?
150
140
130
110
A train passes over a 400 m long bridge. If the speed of the train is 30 m/s and the train takes 20 s to cross the bridge, then the length of the train is
400 m
300 m
200 m
None
A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is
50km/hr
70km/hr
60km/hr
None
A person crosses a 600 m long street in 5 minutes. what is his speed in km per hour ?