Walking as 3/4 of his usual speed, a Shivam is 80 minutes late. His usual time to cover the same distance in hours, is
1). 41/2
2). 5
3). 51/2
4). 4
A man swim at 6 km per hour velocity in still water. He takes 90 minutes to swim from position A to the position B and back in a river when it is flowing at 2 km per hour. The distance between A and B is
1). 6 km
2). 5 km
3). 4 km
4). 3 km
As soon as a passenger train enters the platform, a stray dog starts chasing the train till the end of platform. The train was 200 m long. The platform was 1600 m long. Driver of the train however finds that the dog is not running at all, only pretending to run as neither it moves ahead nor lags behind during the whole time train crosses the platform. But a person standing on the platform tells that the dog was running at a speed of 60 m/s. What was the speed of the train?
1). 30 m/s
2). 16.67 km/hr
3). 216 km/hr
4). 26.67 m/s
Speeds of a boat along the current and against the current are 28 km/hr and 16 km/hr respectively. What is the speed (in km/hr) of the current?
1). 6
2). 22
3). 8
4). 12
A man can row 5 km/hr in still water, where the river is running at 1 km/hr, it takes him 1 hour to row to a place and back. How far is the place?
1). 2.88 km
2). 2.78 km
3). 2.98 km
4). 2.40 km