Mathematics · 2026
JEE Main · 22 January 2026, Shift 2 · Q22
Let S be the set of the first 11 natural numbers. Then the number of elements in A={B ⊆ S: n(B) ≥ 2 and the product of all elements of B is even } is…
Let S be the set of the first $\displaystyle 11$ natural numbers. Then the number of elements in $\displaystyle A=\{B \subseteq S: n(B) \geqslant 2$ and the product of all elements of $\displaystyle B$ is even $\displaystyle \}$ is $\displaystyle \_\_\_\_$.
Official answer
From NTA’s final answer key for this paper.
1979
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JEE Main 2026 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.