Mathematics · 2023
JEE Main · 11 April 2023, Shift 2 · Q1
Let A ={1,3,4,6,9} and B ={2,4,5,8,10}. Let R be a relation defined on A × B such that R={((a_1, b_1),(a_2, b_2)): a_1 ≤ b_2. and.b_1 ≤ a_2}. Then…
Let $\displaystyle \mathrm{A}=\{1,3,4,6,9\}$ and $\displaystyle \mathrm{B}=\{2,4,5,8,10\}$. Let R be a relation defined on $\displaystyle \mathrm{A} \times$ $\displaystyle B$ such that $\displaystyle R=\left\{\left(\left(a_1, b_1\right),\left(a_2, b_2\right)\right): a_1 \leq b_2\right.$ and $\displaystyle \left.b_1 \leq a_2\right\}$. Then the number of elements in the set R is
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 160$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.