In how many different ways can 2 girls and 2 boys form a circle such that the boys and the girls alternate?  Choices:
A) 8
B) 1
C) 7
D) 5
E) 2
Explanation :   In a circle, 2 boys can be arranged in 2! ways   Given that the boys and the girls alternate.   Hence there are 2 places for girls which can be arranged in 2! ways   Total number of ways = 1! x 2! = 1 x 2 = 2. Answer : Option 2
<result>E</result>
In how many different ways can 2 girls and 2 boys form a circle such that the boys and the girls alternate?