Question

2500 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 plants in each row.

• A. 20
• B. 30
• C. 40
• D. 50

Answer 1

The correct option is D 50

Let the number of rows be 'p'.
So number of plants in each row is also 'p'.
Therefore total number of plants = p × p = $p^2$
Now, according to the problem $p^2=2500$
So p = $\sqrt{2500}=50$
Hence number of plants in each row is 50.