Q. 145.0( 1 Vote )

# Mark the correct alternative in the following:The number of ways in which 6 men can be arranged in a row so that three particular men are Consecutive, isA. 4! × 3!B. 4!C. 3! × 3!D. none of these

As, it is required that three particular men are consecutive, so, let us consider the three particular men as a single object.

Thus we have, 4 objects, which can be arranged in 4! ways, and the 3 particular men who are consecutive can be arranged in 3! ways among themselves.

So, the number of arrangements in which 6 men can be arranged in a row so that three particular men are consecutive, is

.

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