Q. 54.4( 50 Votes )

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Answer :

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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