Sudha can row her boat at a speed of 5 km/hour in still water. If it takes her \(3\frac{{15}}{{16}}\) hours more to row the boat 10.5 km upstream than to return downstream, then the speed of the stream (in km/h) is:
1). 2
2). 3
3). 2 ½
4). 3 ½
A man could see 400 m during fog when he was moving with 4 km/hr. He saw a train coming from behind & disappear in 5 mins. If the length of the train is 200 m, find the speed of the train?
1). 25 km/hr
2). 16 km/hr
3). 32 km/hr
4). 24 km/hr
A passenger train running at the speed of 100 kms/hr leaves the railway station 8 hours after a goods train leaves and overtakes it in 6 hours. What is the speed of the goods train?
1). 32.86 kms/hr
2). 32.22 kms/hr
3). 42.86 kms/hr
4). 42.22 kms/hr
The distance between two cities X and Y is 270 km. First train starts from X at 7:00 a.m. and travels towards Y at 40 km/hr. Second train starts from Y at 8:30 a.m. and travels towards X at 30 km/hr. At what time (in a.m.) will both the trains meet?
1). 11:15
2). 10:30
3). 11:30
4). 1:30
A car travels at a speed of 70 km/hr and covers a particular distance in one hour. How long will it take for another car to cover the same distance at 20 km/hr?