The no. of ways of choosing five numbers from 1 to 20 such that positive difference of any two
54 views · Published 13 October 2018 · 4:50 · Indexed 4 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW The no. of ways of choosing five numbers from 1 to 20 such that positive difference of any two of them `(|x_i - x_j|)` is at least 3, is
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