Question

A gardener has 1000 plants. He wants to plant these in such a way that the number of rows and the number of columns remain same. Find the minimum number of plants he needs more for this.

Answer 1

$1000$ is not a perfect square.
${31}^2<1000<{32}^2$
Required no. of trees = ${32}^2-1000$
$=1024-1000$
$=24$.