Linear & Circular Arrangement -1

The correct answer is 3 because there are three persons sitting between Ritu and Manu.

Based on the information given, we know that Alka is sitting to the left of Rohan. Since the question asks for the person sitting on the immediate right of Alka, the correct answer is Rohan.

The given information states that Chitra sits exactly between Eshita and Deepika. This means that Chitra is seated in the middle of Eshita and Deepika.

The lecture on physics was held on Thursday, which means it was the fourth day of the week. Therefore, the lectures on the first three days would be Chemistry, history, and sociology.

The lecture on history was held on Wednesday, which means the lecture held on Tuesday could have been either chemistry or psychology. There is no information given about the specific subject for Tuesday's lecture, so both options are possible.

Mayank's gender is mentioned as male in the given information. The other statements about Mayank's position in relation to other people are not relevant to determining his gender.

Based on the given seating arrangement, all the other pairs consist of two names that are mentioned together. However, Alka and Akash are the only pair that are not mentioned together in the seating arrangement. Therefore, Alka-Akash is different from the others.

If the first person interchanges his position with the person at the fifth position, then Akash will move to the first position. Similarly, if the second person interchanges his position with the person at the sixth position, then Ritu will move to the second position. Following this pattern, the fifth person from the right end in the new arrangement will be Akash.

The person who sits second to the left of Bharat is Akriti.

Eshita is positioned 3rd to the left of Farukh.

Akash and Sonu sit at extreme ends.

Since the lecture on chemistry was held after the lecture on zoology, the lecture on psychology could have been held on either Thursday or Friday.

The group Qazia-Reena-Preeti-Onvi represents the females among the friends because it includes the names Preeti and Reena, which are typically female names.

The given names Chitra, Garima, Farukh, and Harsh are all of Indian origin, while Deepika is of Indian origin but also a popular name in other countries. Therefore, Deepika is the one that does not belong to the group.

Qazia’s position with respect to Onvi is 4th to the left.

All of the given lectures could be held on Saturday because there are no restrictions or limitations mentioned in the question. Since there is no specific information indicating that any of the lectures cannot be held on Saturday, it can be inferred that all three lectures - Chemistry, Zoology, and Psychology - are possible options for a Saturday schedule.

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The four options Nishant-Lakshit, Onvi-Preeti, Preeti-Qazia, and Mayank-Sujit all consist of pairs of people who are seated together in the arrangement. However, Lakshit-Onvi does not follow this pattern as they are not seated together. Therefore, Lakshit-Onvi is the one that does not belong to the group.

The positions of only one friend will remain unchanged (excluding Lakshit). This is because if the friends are arranged alphabetically starting from Lakshit in a clockwise direction, each friend will have a different position compared to their original position. Therefore, only one friend will have the same position as their original position.

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