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In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how?
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In how many way can 7 persons be arranged at a round table so that 2 p...
Solution:
Step 1: Consider the two particular persons as one entity and arrange them with the remaining five.
Number of ways to arrange five persons in a circle = (5 - 1)! = 4!
Step 2: Consider the arrangement of the two particular persons within this entity.
Number of ways to arrange two persons = 2!
Step 3: Total number of ways to arrange seven persons at a round table, with the two particular persons together = 4! × 2!
= 24 × 2
= 48
Hence, the answer is option (B) 240.
Step 1: Consider the two particular persons as one entity and arrange them with the remaining five.
Number of ways to arrange five persons in a circle = (5 - 1)! = 4!
Step 2: Consider the arrangement of the two particular persons within this entity.
Number of ways to arrange two persons = 2!
Step 3: Total number of ways to arrange seven persons at a round table, with the two particular persons together = 4! × 2!
= 24 × 2
= 48
Hence, the answer is option (B) 240.
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In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how?
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In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how?.
In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In how many way can 7 persons be arranged at a round table so that 2 particular persons can be together? (A) 180 (B) 240 (C) 360 (D) none of the above The answer is B, explain how?.
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