Question

EXAMPLE 10 There are six periods in each working day of a school. In how many ways can one arrange 5
subjects such that each subject is allowed at least one period?​

Answer 1

Answer:

There are 6 period in each working day of a school. in how many ways can I organize 5 subject such that each subject is allowed at least one period 5 subject can be arranged in 6 period in 6p5 ways

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