4 boys and 2 girls are to be seated in a row in such a way that the two girls are always together. In how many different ways can they be seated?	Choose the correct choice from the following.
A) 120  B) 720  C) 148  D) 240  E) None of these
Assume the 2 given students to be together (i.e one).   Now there are five students.   Possible ways of arranging them are = 5! = 120   Now, they (two girls) can arrange themselves in 2! ways.   Hence total ways = 120 × 2 = 240   Answer 240
<result>D</result>
4 boys and 2 girls are to be seated in a row in such a way that the two girls are always together. In how many different ways can they be seated?