Number of six-digit numbers such that any digit that appears in the number appears at least tw
1,412 views · Published 13 October 2018 · 4:35 · Indexed 1 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Number of six-digit numbers such that any digit that appears in the number appears at least twice, where the digits of each number are from the set `{1, 2, 3, 4, 5},` is (Example 225252 is valid but 222133 is not valid)
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