JEE Main 2023 (Online) 1st February Morning Shift | Permutations and Combinations Question 47 | Mathematics | JEE Main - ExamSIDE.com

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JEE Main 2023 (Online) 1st February Morning Shift

Numerical

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-1

The number of 3-digit numbers, that are divisible by either 2 or 3 but not divisible by 7, is ____________.

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2

JEE Main 2023 (Online) 1st February Morning Shift

Numerical

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-1

The number of words, with or without meaning, that can be formed using all the letters of the word ASSASSINATION so that the vowels occur together, is ___________.

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3

JEE Main 2023 (Online) 31st January Evening Shift

Numerical

+4

-1

Let $\mathrm{A}=\left[\mathrm{a}_{i j}\right], \mathrm{a}_{i j} \in \mathbb{Z} \cap[0,4], 1 \leq i, j \leq 2$.

The number of matrices A such that the sum of all entries is a prime number $\mathrm{p} \in(2,13)$ is __________.

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4

JEE Main 2023 (Online) 31st January Evening Shift

Numerical

+4

-1

If ${ }^{2 n+1} \mathrm{P}_{n-1}:{ }^{2 n-1} \mathrm{P}_{n}=11: 21$,

then $n^{2}+n+15$ is equal to :

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