DT Q38

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DT Q38

38The following are the starting and ending times of activities A, B, C, D, E, F, G and H respectively in chronological order: “a_sb_sc_sa_ed_sc_ee_sf_sb_ed_eg_se_ef_eh_sg_eh_e”
Here, x_s denotes the starting time and x_e denotes the ending time of activity X. W need to schedule the activities in a set of rooms available to us. An activity can be scheduled in a room only if the room is reserved for the activity for its entire duration. What is the minimum number of rooms required?

Option : B
Explanation :
So total 4 rooms are required.

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