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JEE MATHEMATICS MCQ: PERMUTATIONS

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The number of ways of arranging six persons (having

A, B, C

and

D

among them) in a row so that

A, B, C

and

D

are always in order

A B C D

(not necessarily together) is

View answer and explanation

Correct option: C

30

Option C (30) is correct because it represents the number of ways to arrange the six persons with the specified order constraint.

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