On the basis of the information given in the following case.
Tina a blast furnace expert, who works as a technology trouble-shooter stays in Jamshedpur. She has got an important assignment in Delhi, which requires six hours to complete. The work is so critical that she has to start working the moment she reaches the client’s premises. She is considering various options for her onward and return journey between Jamshedpur to Delhi.A quick search revealed that ticket from Jamshedpur to Delhi is available in two trains. Trains 12801 and 12443 depart from Jamshedpur station at 06:45 hrs and 15.55 hrs and reach Delhi next day at 04:50 hrs and 10:35 hrs respectively. Trains 12444 and 12802 start from Delhi at 17:20 hrs and 22:20 hrs and reach Jamshedpur next day at 10:35 hrs and 20:05 hrs respectively. Another option is to reach Ranchi by a three hour road trip and take a flight to Delhi from Ranchi. The distance between Ranchi and Delhi is covered in 105 minutes both-ways by any of the scheduled flights. Air India operates two flights, AI 9810 and AI 810, which depart Ranchi at 8:00 hrs and 15:25 hrs respectively. Flight number IT-3348 operated by Kingfisher Airlines departs Ranchi at 19:20 hrs. Return flights operated by Air India, AI 9809 and AI 809, depart Delhi at 5:50 hrs and 11:00 hrs respectively. Flight number IT-3347 operated by Kingfisher Airlines departs Delhi at 17:10 hrs.From Tina’s home Jamshedpur railway station is five minutes drive, and her destination at Delhi is 90 minutes and 30 minutes drive from airport and railway station respectively. One has to reach the airport at least one hour before the scheduled departure to complete the boarding procedure. At every railway station she loses five minutes in navigating through the crowd.
If Tina wants to minimize the total time out of Jamshedpur, the best option for her, from the options given below, is:
Tabulated form of the data:
S - Source station D - Destination Station
Extra time taken if flight is the mode of travel = 3 hours(Road trip) + 1 hour(early arrival)
Option (A):
Source is Jamshedpur(AI9810)
Time of departure from home = 8:00 - 4 hour = 4:00
Arrival time at Delhi = 9:45
She can depart by flight earliest by 9:45 +1:30(Airport to work) + 6:00(Work time) + 1:30(Work to Airport) + 1:00(Early Arrival) = 19:45
IT3347 departs from Delhi at 17:10. So, she reaches Jamshedpur by 18:55(2nd day) + 3:00(Road Trip) = 21-55(2nd day)
Total Time = 41 hours 55 mins.
Option (B):
Starting from Jamshedpur (AI9810) = 4:00
Arrival time at Delhi = 9:45
She can depart by train earliest by 9:45 +1:30(Airport to work) + 6:00(Work time) + 00:30(Work to station) + 0:05(Wait time) = 17:50
Train 12802 departs from Delhi(RS) at 22:10 and reaches Jamshedpur by 20:05(2nd day).
Total time = 40 hours 5mins.
Option (C):
Starting from Jamshedpur = 19:20 - 4 hour = 15:20
Arrival time at Delhi = 21:05
She can depart by flight earliest by 21:05 +1:30(Airport to work) + 6:00(Work time) + 1:30(Work to Airport) + 1:00(Early Arrival) = 7:05(2nd day)
AI9809 departs from Delhi at 5:50. So, she can reach Jamshedpur by 7-35(3rd Day) + 3:00(Road Trip)=10:35(3rd Day)
Total Time = 43 hours 15mins.
Option (D):
Starting from Jamshedpur = 15:55
Arrival time at Delhi (RS) = 10:35(2nd day)
She can depart from Delhi (RS) earliest by 10:35(2nd day) + 00:30(Station to Work) + 0:05(Wait time) + 6:00(Work time) + 00:30(Work to station) + 0:05(Wait time) = 17:45(2nd day)
Train 12444 departs from Delhi (RS) at 17:20. So she will catch the train the next day.
Since the total hours is more than 48, this is not the answer,
Option (E):
Starting from Jamshedpur = 4:00
Arrival at Delhi airport = 9:45
She can depart from Delhi (RS) earliest by 9:45 + 1:30(Airport to work) + 6:00(Work time) + 00:30(Work to station) + 0:05(Wait time)= 17:50
So, she can start only on day 2 at 17:20.
Thus, since she will be out for more than 48 hours, this is not the correct answer.
Thus, the correct answer is B.
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