There are 7 periods in each working day of a school. In how many ways – InterviewSolution

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1.	There are 7 periods in each working day of a school. In how many ways can one organize 6 subjects such that each subject is allowed atleast one period?
Answer» There are $7$ periods in each working day of a school. In how many ways can one organize $6$ subjects such that each subject is allowed atleast one period?

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