The number of 3-digit numbers such that the digit 2 is never to the immediate left of 1 is
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We have total 900 three digit numbers from 100-999. I think its typo it should be immediate. We have numbers in which 1 is immediate right to 2 are 210-219, 121, 221, 321, 421, 521, 621, 721, 821, 921.
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We have total 900 three digit numbers from 100-999. I think its typo it should be immediate. We have numbers in which 1 is immediate right to 2 are 210-219, 121, 221, 321, 421, 521, 621, 721, 821, 921.
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The language sounds off, but if
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