Let A = {1, 2, 3, 4} and B = {1, 4, 9, 16}. Then the number of ma… | JEE Main 2025 Mathematics PYQ | Jeeify

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MCQMediumJEE Main 2025 · 22 January, Shift 2Applications of P&C

Let $A = \{1, 2, 3, 4\}$ and $B = \{1, 4, 9, 16\}$ . Then the number of many-one functions $f: A \to B$ such that $1 \in f(A)$ is equal to:

A
$127$
B
$139$
C
$163$
D
$151$

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