There are 6 periods in each working day of a school. In how many ways can one organize 5 subjects such that each subject is allowed at least one period?	Choose the correct choice from the following options:
A) 3200  B) 3600  C) 2400  D) 3400  E) None of these
5 subjects can be arranged in 6 periods in 6P5 ways.   Remaining 1 period can be arranged in 5P1 ways.   Two subjects are alike in each of the arrangement. So we need to divide by 2! to avoid overcounting.   Total number of arrangements = (6P5 x 5P1)/2! = 1800   ANSWNone of theseR:None of these
<result>E</result>
There are 6 periods in each working day of a school. In how many ways can one organize 5 subjects such that each subject is allowed at least one period?