Let A = {1, 3, 4, 6, 9} and B = {2, 4, 5, 8, 10}. Let R be a rela… | JEE Main 2023 Mathematics PYQ

MCQMediumJEE Main 2023 · 11 April, Shift 2Relations

Let $A = \{1, 3, 4, 6, 9\}$ and $B = \{2, 4, 5, 8, 10\}$ . Let $R$ be a relation defined on $A \times B$ such that $R = \{((a_1, b_1), (a_2, b_2)): a_1 \leq b_2 \text{ and } b_1 \leq a_2\}$ . Then the number of elements in the set $R$ is:

A
$52$
B
$160$
C
$26$
D
$180$

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