Question

1225 plants are to be planted in a garden in such a way that each row contains as many plants as the number of rows. Find the number of rows and the number of plants in each row.

Answer 1

Let no. of rows=x
Then number of plants in each row= x

$\therefore x\times x=1225\Rightarrow x^2=1225$
$\Rightarrow x=\sqrt{1225}=\sqrt{\overline{5\times 5}\times \overline{7\times 7}}=5\times 7=35$
Hence, no. of rows= 35
and no. of plants in each row= 35