Question

In how many of the permutations of the letters in the
word CAMBRIDGE when
M, R, D are together.



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Answer 1

Answer:

ANSWER IS 720 : )

Step-by-step explanation:

MRD CABIGE :

PERMUTATION = 1! * 6!/1                  [As we can take MRD as a 1 arrangement]

                          =  720

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Answer 2

Answer:

30240

Step-by-step explanation:

MRD has to be together, so MRD can be considered as 1 letter, so we will have 7 letters in total.

So, since there are 7 distinct elements: 7!

However, MRD can have different permutation as well: 3!

Final answer: 7! x 3! = 30240