Mathematics · 2022
JEE Main · 28 June 2022, Shift 2 · Q17
The probability that a randomly chosen one-one function from the set { a, b, c, d } to the set {1,2,3,4,5} satisfies f( a )+2 f( b )-f( c )=f( d ) is:
The probability that a randomly chosen one-one function from the set $\displaystyle \{\mathrm{a}, \mathrm{b}, \mathrm{c}, \mathrm{d}\}$ to the set $\displaystyle \{1,2,3,4,5\}$ satisfies $\displaystyle f(\mathrm{a})+2 f(\mathrm{~b})-f(\mathrm{c})=f(\mathrm{~d})$ is :
Official answer
(4)
$\displaystyle \frac{1}{20}$
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JEE Main 2022 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.