Mathematics · 2020
JEE Main · 6 September 2020, Shift 1 · Q71
Set A has m elements and Set B has n elements. If the total number of subsets of A is 112 more than the total number of subsets of B, then the value…
Set A has m elements and Set B has n elements. If the total number of subsets of $\displaystyle A$ is $\displaystyle 112$ more than the total number of subsets of B, then the value of $\displaystyle \mathrm{m} \cdot \mathrm{n}$ is
\_\_\_\_.
Official answer
28
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.