AP EAMCET · Maths · Permutation Combination
Six persons and are to be seated at a circular table facing towards the centre. Then the number of ways that can be done if must have either or on his immediate right and must have either or on his immediate right, is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
There are two cases, I is to the immediate right of A. Number of ways E can fill=3 ways E cannot take sit on the left of A as there will be no space. Number of ways D can fill=1 ways The remaining seats can be filled in 2 ways. The total numbers of ways are 3×1×2=6 The…
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