10
SHORT ANSWER4 marks
Find the number of 7-digit numbers formed using digits 0, 1, 2 (starting with 1 or 2) such that at least one of 0 and 1 appears exactly twice.
Answer
762
JEE Advance · 2025
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Find the number of 7-digit numbers formed using digits 0, 1, 2 (starting with 1 or 2) such that at least one of 0 and 1 appears exactly twice.
Answer