Eleven books consisting of 4 financial management, 3 marketing management and 4 system management are placed on a shelf at random order. What is the probability that the books of each kind are all together. Select.
A) 1/1455 B) 1/1355 C) 1/2255 D) 1/5040 E) 1/1155
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>E</result>
Eleven books consisting of 4 financial management, 3 marketing management and 4 system management are placed on a shelf at random order. What is the probability that the books of each kind are all together.