Q. 10 The following are the starting and ending times of cetivities A, B, C, D, E, F, G and H respectively in chronological order;”as bs aa ae ds ae es fs be de gs ee fehsgehelHere, xs denotes the starting time and xe 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?
(A) 3
(B) 4
(C) 5
(D) 6
Answer: (B)
Explanation:
