Speed of a boat is 6 km/hr is still water and the speed of the stream is 1 km/hr. If the boat takes 12 hours to go to a place and come back, then what is the distance (in km) of the place?
1). 21
2). 28
3). 35
4). 70
Two trains A and B start running together from the same point in the same direction at 60 km/h and 70 km/h respectively. If the length of each train is 240 train m, how long will it take for the train B to cross Train A?
1). 1 min 12 s
2). 1 min 26 s
3). 2 min 53 s
4). 2 min 12 s
Anurag runs 6 km at 4 kmph. At what speed he should run for next 6 km such that the average speed becomes 6 kmph?
5 kmph
6 kmph
10 kmph
12 kmph
A car covers a fixed distance with a constant speed in a certain amount of time. If the same car covers one-third of the distance with original speed and the next one-third with a speed twice as that of the original, then what should be the ratio of its new speed to original speed so as to cover the complete distance in fixed time, where new speed refers to the speed of the car in the last one-third distance?
1). 3 : 2
2). 4 : 3
3). 1 : 3
4). 3 : 4
Compare the values of the two quantities in the question and answer.
Quantity 1: A boat takes 3 hrs. 20 min. to travel 40 km upstream and 2 hrs.40 min. to travel the same distance in still water. How much time will it take to cover the same distance downstream?
Quantity 2: The downstream speed of a boat is 22 km/hr and upstream speed is 17 km/hr. How much time will it take to travel 45 km in still water?