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 decides to minimize the in-between waiting period, the option that she should choose from the options given below, will be:
S- Source, D- Destination
Option (A):
Tina will reach Delhi by Train 12801 at 4:50.
She will finish her work and then will go to Delhi airport and check in by 4:50 + 9:05, i.e. 13:55.
Since the flight departs at 17:10, the waiting period is 3 hrs. 15 mins.
Option (B):
Tina will reach Delhi by Train 12801 at 10:35.
She will finish her work and then will go to Delhi and navigate through the crowd and will reach by 10:35 + 7:10, i.e. 17:45.
Since the train deports by 22-20, the waiting period is 4 hrs. 35 mins.
Option (C):
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
Since the train departs at 22-20, the waiting period is 4 hrs. 30 mins.
Option (D):
Arrival at Delhi airport by AI810= 9:45
Tina finishes her work and reaches the airport, and can check-in in 10 hours, i.e. she can check in by 3-10. But the flight AI9809 departs at 5-50.
Hence, the waiting period is 2 hrs. 40 mins.
Option (E):
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)
. Since the flight AI809 departs at 11-00. The waiting period is 3 hrs. 55 mins.
Thus, the correct option is E.
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