Question

1521 trees are planted in a garden in such a way that there are as many trees in each row as there are rows in the garden. Find the number of rows and number of trees in each row.

Answer 1

Let the no.of trees in each row $=x$

Let the no.of rows$=x$

$\therefore$ total no.of trees $=x^2$

$\Rightarrow x^2=1521$

$\therefore x=\sqrt{1521}=\sqrt{39\times 39}=39$

$\therefore$ no.of rows $=39$

Hence, no.of trees in each row $=39$