Let the digits be in A.P. Nine-digit numbers are to be formed using each of these three digits thrice such that three consecutive digits are in A.P. at least once. How many such numbers can be formed?
NVAMediumJEE Main 2023 · 12 April, Shift 1Applications of P&C
Mathematics Question from JEE Main 2023 · 12 April, Shift 1
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