If 'n' things are arranged in circular order, then show that the number of ways of selecting f...
374 views · Published 12 October 2018 · 4:26 · Indexed 5 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If 'n' things are arranged in circular order, then show that the number of ways of selecting four of the things no two of which are consecutive is `(n(n -5) (n -6) (n -7))/(4!)`
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