AP EAMCET · Maths · Permutation Combination
The number of arrangements of the word KANGAROO in which As' do not appear together is
- A 2520
- B 3780
- C 7650
- D 7560
Answer & Solution
Correct Answer
(B) 3780
Step-by-step Solution
Detailed explanation
Total no. of arrangements \(=\frac{8 !}{2 ! 2 !}\) No. of arrangements, when A's are together \(=\frac{7 !}{2 !}\) So, the number of required arrangement \(=\frac{8 !}{2 ! 2 !}=\frac{7 !}{2 !}=7560\)
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