Question

In a garden, there are 6,561 plants. The gardener wants to keep them in rows and columns such that the number of rows is equal to the number of columns. Choose the option of the number of rows.

Answer 1

Answer: 81 rows

Step-by-step explanation:

Let the no. of rows be 'x'

Given: No. of rows = No. of columns

Total no. of plants to be planted = 6,561

By Condition,

No. of rows × No. of columns = 6,561

x × x = 6,561

x² = 6,561

x = √6,561

x = √81×81

x = 81