Given, 1521 trees are planted in a garden. We need to find out number of rows and number of trees.
Let us assume the number of trees in each row = x.
Since, we know that number of trees in each row = number of rows in the garden.
Total number of trees planted in a garden = x × x = x2
Calculate x value.
∴ x2 = 1521
Calculate, prime factors for 1521.
We know from pairing the factors
⇒ x2 = (3 × 3) × (13 × 13)
⇒ x2 = 3 × 13
⇒X = 39
Hence, the number of trees in each row is 39 and number of rows in the garden is also 39.
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