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CAT 2025 Lesson : Interpretative Tables - Case 6

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Example Case 6

Directions for Questions 21 to 23 : Answer the following questions based on the information given below:

Given below is the time table for a trans-continental train that cuts across several time zones. All timings are in local time in the respective cities. The average speed of the train between any two cities is the same in both directions.


[XAT 2019]

21) Which of the following pairs of cities are in the same time zone?

(1) Yag and Vaq
(2) Vaq and Sab
(3) Zut and Yag
(4) Sab and Raz
(5) No pair of cities are in the same time zone.

22) What is the total time taken in minutes by the train to go from Zut to Raz?

(1) 16 hours, 40 minutes
(2) 20 hours, 40 minutes
(3) 22 hours, 40 minutes
(4) 24 hours, 40 minutes
(5) 28 hours, 40 minutes

23) What time is it at Yag when it is 12:00 noon at Sab?

(1) 2:30 pm
(2) 7:00 am
(3) 9:30 am
(4) 12:00 noon
(5) 5:00 pm

Solution

Case Solution:

Let us find the total time taken, time difference and travel time of the taken by the train in both routes. Total time taken is the time taken by train from departure of one city to the arrival of next city.

Time difference = Difference of total taken by train both routes2\dfrac{\mathrm{|Difference \ of \ total \ taken \ by \ train \ both \ routes|}}{2}

Travel time =
Sum of the total taken by train in both routes2\dfrac{\mathrm{Sum \ of \ the \ total \ taken \ by \ train \ in \ both \ routes}}{2}


Z – Zut, Y – Yag, V – Vaq, S – Sab, R – Raz

21)

If the time difference between any of 2 cities is 0, then both the cities are in same time zone. Zut and Yag have time difference of 0.

Answer: (3) Zut and Yag

22)

Total time taken by the train from Zut to Raz is sum of all the travel time and the waiting time in each city.

Total time taken = 1hr, 45m + 8hr, 55m + 7hr, 50m + 3hr, 55m + 15m (Waiting time)
⇒ 22hr, 40m

Answer: (3) 22 hours, 40 minutes

23)

Let us form a table to find the time at different city with respect to city Zut



Then if the time in Yag is 12:00 noon then the time in Sab will be 5:00 PM

Answer: (5) 5:00 PM

Answer:
21) (3) Zut and Yag
22) (3) 22 hours, 40 minutes
23) (5) 5:00 pm
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