It is required to seat 3 boys and 2 girls in a row so that the girls occupy the even places. How many such arrangements are possible?	Choose the correct choice from the following options:  A) 28  B) 21  C) 30  D) 22  E) 12
Total number of candidates = 3 + 2= 
<gadget id="calculator">3 + 2</gadget>
<output>5</output>
5. In the row of 5 positions, the even places are 2nd, 4th.   Now, number of even places= 2.   Number of girls to occupy the even places = 2.   Even places can be filled = P (2, 2) ways.   Number of boys = 3.   The remaining 3 places can be filled by 3 boys = P (3, 3) ways   By the fundamental principle of counting:   The required number of seating arrangements   P(2, 2) x P(3, 3) = 2! x 3! = 2 x 6 = 12   ANSW12R:12
<result>E</result>
It is required to seat 3 boys and 2 girls in a row so that the girls occupy the even places. How many such arrangements are possible?