Eleven books consisting of 2 financial management, 4 marketing management and 5 system management are placed on a shelf at random order. What is the probability that the books of each kind are all together.	Choose the correct choice:	A) 1/1455	B) 1/1355	C) 1/2255	D) 1/1155	E) 1/5040
Since the denominator will be 11! . And there is no way to divide 11 from numerator and denominator. Use a multiple of 11 in the denominator only answer   1/1155
<result>D</result>
Eleven books consisting of 2 financial management, 4 marketing management and 5 system management are placed on a shelf at random order. What is the probability that the books of each kind are all together.