NCERT - Mathematics

Book: NCERT - Mathematics

Chapter: 6. Squares and Square Roots

Subject: Maths - Class 8th

Q. No. 8 of Exercises 6.4

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A gardener has 1000 plants. He wants to plant these in such a way that the numberof rows and the number of columns remain same. Find the minimum number of plants he needs more for this

It is mentioned in the question that the gardener has 1000 plants.


The number of rows and the number of columns is the same

We need to find the number of more plants that should be there, such that when the gardener plants them, the number of rows and columns are equal to one another.

For this, the number which should be added to 1000 to make it a perfect square has to be calculated

The square root of 1000 can be calculated by long division method as follows:



1̅0̅ 0̅0̅





The remainder is 39. It represents that the square of 31 is less than 1000

The next number is 32 and 322 = 1024

Hence, number to be added to 1000 to make it a perfect square

= 322 - 1000

= 1024 - 1000

= 24

Thus, the required number of plants is 24.


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