Mathematics · 2023
JEE Main · 10 April 2023, Shift 1 · Q7
A square piece of tin of side 30 cm is to be made into a box without top by cutting a square from each corner and folding up the flaps to form a box.…
A square piece of tin of side $\displaystyle 30$ cm is to be made into a box without top by cutting a square from each corner and folding up the flaps to form a box. If the volume of the box is maximum, then its surface area (in $\displaystyle \mathrm{cm}^2$ ) is equal to
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 800$
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JEE Main 2023 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.