Two trains are running in opposite directions with the same speed. If the length of each train is 120 meters and they cross each other in 12 sec, then the speed of each train (in km/hr) is:
A man can row at 5km ph in still water .if the velocity of current is 1 km ph and it Takes him 1 hours to row to a place and come back ,how far is the place?
A train overtaken two persons walking along a railway track. The first one walks at 4.5 km/hr. the other one walks at 5.4 km/hr. the train needs 8.4 and 8.5 sec respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train
Two trains of equal length are running on parallel lines in the same directions at 46 km/hr and 36 km/hr and 36 km/hr. the faster train passes the allower train in 36 sec. the length of each train is
A train moves with a speed of 108 kmph. Its speed in meters per sec
A jogger running at 9 kmph alongside a railway track is 240 meters ahead of the engine of a 120 meter long train running at 45 kmph in the same direction. How much time will the train pass the jogger?
In a 100m race A cover the distance in 36 seconds and B in 45 seconds. In this race A beats B by
A train takes 10 seconds to cross an electric pole. It takes 30 seconds to cross a train travelling in the same direction at 36 kmph and having a length of 300 m.Find its length (in metres).
P beats Q by 5 seconds in a race of 1000m and Q beats R by 5 metres in a race of 100m. By how many seconds does P beats R in a race of 1000 m?
Cannot be determined
A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. The distance (in km) is;
3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
Rajesh walks to and fro to a shopping mall. He spends 30 minutes shopping. If he walks at speed of 10 km an hour, he returns to home at 19.00 hours. If he walks at 15 km an hour, he returns to home at 18.30 hours. How fast must he walk in order to return at 18.15 hours?
325-(12)² + 75= (?)²-68
Taps A and B can independently fill a tank in 6 and 10 hours . Leak C can empty a filled tank in 8 hours. On an empty tank A, B, C are opened. How long does it take to fill the tank
Car A covered the distance of 448 km in 8 hours and Car B covered 110 km more than Car A in 9 hours. What is the ratio between the speed of Car A and Car B respectively?
29 : 32
55 : 2
62 : 55
None of these
A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km
If a man rows at the rate of 5 kmph in still water and his rate against the current is 3.5 kmph, then the man’s rate along the current is?
4. 25 kmph
A boatman goes 2 km against the current of the stream in 1 hour and goes 1km along the current in 10 minutes. How long will it take to go 5 km in stationary water?
1 hour 15 min
1 hour 30 min
3 pipes can fill a reservoirin 10,15 and 20 hrs. resp. The first was opened at 5 a.m. , the second at 6 a.m., third at 7 a.m. When will the reservoir the filled?
Three friends A, B and C run around a circular track of length 120 metres at speeds of 5 m/s, 7 m/sec and 15 m/sec, starting simultaneously from the same point and in the same direction. How often will the three of them meet?
Every 60 seconds
Every 120 seconds
Every 30 seconds
None of these
A thief steals a car at 2.30 p.m. and drives it at 60 kmph. The theft is discovered at 3 p.m. and the owner sets off in another car at 75 kmph. When will he overtake the thief?
A boat can travel with a speed of 13km/hr in still water .if the speed of the stream is 4km /hr Find the time taken by the boat to go 68km downstream
A boat covers a certain distance downstream in 1 hour, while it comes back in 1 ½ hours. If the speed of the stream be 3 kmph. What is the speed of the boat in still water?
Two boats, traveling at 5 and 10 kms per hour, head directly towards each other. They begin at a distance of 20 kms from each other. How far apart are they (in kms) one minute before they collide
A Boat running downstream covers a distance of 16 km in 2 hours while for covering the same Distance upstream it takes 4 hours. What is the speed of the boat in still water?
A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:
A train of length 150 meters takes 40.5 sec to cross a tunnel of length 300 meters. What is the speed of the in km/hr
A man’s speed with the current is 15 km/hr and the speed of the current is 2.5kmph, the man’s Speed against the current is
8.5 km /hr
10 km /hr
Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient tha Sakshi. The number of days taken by Tanya to do the same piece of work is