Question

SECTION D
35. A gardener has 1000 plants. He wants to plant these in such a way that the number of rows and the number
of columns remain same. Find the minimum number of plants he needs for this.
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Answer 1

Answer:

we can plant 50 saplings in each row

Step-by-step explanation:

square root of 1000

sqrt-1000-5x5x5x5x2x2

5x5x2=50

Answer 2

Correct answer is 24 plants.

Step-by-step explanation:

Explanation

Given

Total plants - 1000

Let number of rows - X

:Number of columns- X

Now,

Total plants = No. of rows x No. of columns

1000=X x X

1000=X square

X square=1000

X= ✓1000

square root of 1000

So,

Remainder=39

Given that,

He wants to plant these in such a way that

the number of rows and columns remain same , we need to find minimum number of plants he need more for this.

We need to find the least number that must be added to 1000 so as to get a perfect square .

Now,

31 square<1000< 32 square

Thus we add 32 square-1000 to the number

: Number to be added

=32 square - 1000

=1024 -1000

=24

:: The gardener need 24 more plants.