Question

37. Number of ways in which 7 people can occupy six
seats, 3 seats on each side in a first class railway
compartment if two specified persons are to be
always included and occupy adjacent seats on the
same side, is (5!) .k then k has the value equal to
(a) 2
(b) 4
(c) 8
(d) none of these​

Answer 1

good night

(c) 8

are correct answer

Answer 2

7 people can occupy six  seats

3 seats on each side in a first class railway

2 specified persons are to be always included and occupy adjacent seats on the

        same side,

                 2 already specified so 5 people left and 4 seats left.

       Therefore,     5C2*4!*2!*4=8*5!

• k has the value equal to 8