1. Find the number of ways 7 teachers can be assigned to 4 sections of a...

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1. Find the number of ways 7 teachers can be assigned to 4 sections of a class If no teacher has more than one section.

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solution Here no of teachers = 7 no of classes =u. no- of ways 7 teachers can be assigned u bections is Pu - 1 to 7 X 6X 5 X

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