Bissoy.com
Doctors Medicines MCQs Q&A

A train leaves Delhi at 10 a.m. and reaches Jaipur at 4 p.m. on same day. Another train leaves Jaipur at 12 p.m. and reaches Delhi at 5 p.m. on same day. What is the time of day (approximately) when the two trains will meet?

A train leaves Delhi at 10 a.m. and reaches Jaipur at 4 p.m. on same day. Another train leaves Jaipur at 12 p.m. and reaches Delhi at 5 p.m. on same day. What is the time of day (approximately) when the two trains will meet? Correct Answer 1 : 49 p.m.

Let the total distance between Delhi and Jaipur be a

Travel time of train A going from Delhi to Jaipur = 4 p.m – 10 a.m = 6 hours

⇒ Speed of train A = a/6 km/hr

Travel time of train B going from Jaipur to Delhi = 5 p.m – 12 p.m = 5 hours

⇒ Speed of train A = a/5 km/hr

⇒ Distance covered by train A in 2 hours = (a/6) x 2 = a/3

Distance left for train A to cover when time is 12 : 00 pm = a – a/3 = 2a/3

Relative velocity for train A w.r.t B = a/6 + a/5 = 11a/30

⇒ Time Taken = Distance/speed= (2a/3)/(11a/30) = 20/11 hours

∴ required time = 12 : 00 pm + 20/11 hours = 1 : 49 pm

Related Questions

A train leaves Delhi at 10 a.m. and reaches Jaipur at 4 p.m. on same day. Another train leaves Jaipur at 12 p.m. and reaches Delhi at 5 p.m. on sameday. What is the time of day (approximately) when the two trains will meet?
A, B, C, D, E, F and G are seven coaches. Each one among them is a coach of a different game. The games are Hockey, Cricket, Badminton, Tennis, Volleyball, Basketball and Football (not necessarily in the same order). Each of them trains on one of the seven days of the week from Monday to Sunday (not necessarily in the same order). No two coaches train on the same day of the week. C trains Badminton on Friday. B teaches Volleyball on the previous day of the day on which a coach trains Hockey. G trains on Sunday but does not train Cricket or Tennis. D trains Basketball on the previous day of the day on which F trains. A trains Football on Tuesday. E does not train Tennis. On which day does F train?
There is only one rail track between stations A and B on a railway line. One hour after the northbound superfast train N leaves station A for station B, the southbound passenger train S reaches station A from station B. The speed of superfast train is twice that of express train E, while the speed of passenger train S is half of that of train E. On some one day train N leaves from station A to station B 20 minutes late than its usual schedule. Both Train N and Train S have increased their speed to maintain the schedule as per the table. If the superfast train doubles its speed, then what should be the ratio (approximately) of the speed of the passenger train to the speed of the superfast train so that the passenger train reaches the station on that day at the exact scheduled time.
In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and chose the correct option. Quantity A: A train is running from Jaipur to Jammu at 8:00 am at the speed of 40 km/hr and another train is running from Jammu to Jaipur at 9:00 am at the speed of 60 km/hr. If the distance between Jaipur and Jammu is 640 km then find the distance from Jaipur when they meet? Quantity B: Shatabdi Express is running from Delhi to Kanpur at 7:00 am at the speed of 80 km/hr and Rajdhani Express is running after 2 hours of shatabdi express at the speed of 120 km/hr. Find out the distance from Delhi when they meet?
One car runs from Jaipur to Shimla and the other from Shimla to Jaipur. They both start simultaneously and meet cross each other at a particular point on the route. The speeds of cars from Jaipur to Shimla and from Shimla to Jaipur are in the ratio 4 ∶ 3 respectively. After crossing each other the car from Jaipur to Shimla takes 5 hours to complete the leftover 250km of journey. The speed of the car from Shimla to Jaipur after crossing reduced by 10 km/h and it covered the leftover distance in 10 hours. What is the total distance between Jaipur and Shimla?
Train A travelling at 60 km/hr leaves Mumbai for Delhi at 6 pm. Train B travelling at 90 km/hr also leaves Mumbai for Delhi at 9 pm. Train C leaves Delhi for Mumbai at 9 pm. If all the three trains meet at the same time between Mumbai and Delhi, then what is the speed of train C if the distance between Delhi and Mumbai is 1260 km ?
Due to the technical snag in the signal system two trains start approaching each other on the same track from two different stations, 240 km away each other. When the train starts a bird also starts moving to and fro between the two trains at 60 kmph touching each train each time. The bird initially sitting on the top of the engine of one of the trains and it moves so till these trains collide. If these trains collide one and half hour after start, then how many kilometers bird travels till the time of collision of trains?
A goods trains 1680 metres long and travelling at the speed of 48 km per hr. leaves Jaipur at 7 am. Another mail train 5320 meters long and travelling at the average speed of 67 km per hr. leaves Jaipur at 12 noon and follows the goods train. At what distance from Jaipur will the mail train completely cross the goods train?
Agra andDelhi are 160 km apart. A train leaves Agra for Delhi and at the same time another train leaves Delhi for Agra. Both the trains meet 5 hrs after they start moving. If the train travelling fromAgra to Delhi travels 6 km/hr faster than the other train, find the speed of the faster train?
A train leaves Kazipet at 5 a.m. and reaches Bangalore at 3 p.m. Another B train leaves Bangalore at 7 a.m. and reaches Kazipet at 5 p.m. When do the two trains meet? Assume that the trains travels at equal uniform speeds.