1
JEE Main 2023 (Online) 12th April Morning Shift
Numerical
+4
-1
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Let the digits a, b, c 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?

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2
JEE Main 2023 (Online) 11th April Morning Shift
Numerical
+4
-1
Change Language

In an examination, 5 students have been allotted their seats as per their roll numbers. The number of ways, in which none of the students sits on the allotted seat, is _________.

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3
JEE Main 2023 (Online) 10th April Evening Shift
Numerical
+4
-1
Change Language

The sum of all the four-digit numbers that can be formed using all the digits 2, 1, 2, 3 is equal to __________.

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4
JEE Main 2023 (Online) 10th April Morning Shift
Numerical
+4
-1
Change Language

The number of permutations, of the digits 1, 2, 3, ..., 7 without repetition, which neither contain the string 153 nor the string 2467, is ___________.

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