Mathematics
Grade-8
Easy

Question

2025 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.

  1. 55
  2. 65
  3. 45
  4. 35

hintHint:

In this question, they have said that 2025 plants are to be planted in a garden in such a way that each row contains as many plants as the number of rows, which means the number of rows should be equal to the number of plants in a row. For example, if there are 30 plants in a row, then there should be 30 rows as well.
We have given that the total number of plants to be planted is 2025.

The correct answer is: 45


    Now we have given that the total number of plants that are supposed to be planted is 2025. Here we will use the concept of square root, which is a number's square root is a value that, when multiplied by itself, yields the original number. The other way to square an integer is to find its square root. 
    So, the total rows will be:
    T o t a l space n u m b e r space o f space r o w s space equals space square root of t o t a l space n u m b e r space o f space p l a n t s space p l a n t e d end root
T o t a space n u m b e r space o f space r o w s space equals space square root of 2025
F a c t o r i sin g space t h e space n u m b e r space 2025 comma space w e space g e t colon
T o t a l space n u m b e r space o f space r o w s space equals space square root of 5 cross times 5 cross times 3 cross times 3 cross times 3 cross times 3 end root
T o t a l space n u m b e r space o f space r o w s space equals space 5 cross times 3 cross times 3
T o t a l space n u m b e r space o f space r o w s space equals 45
    So the total number of rows will be 45 and in each row, 45 plants will be planted.

    Here we have to find out the number of rows to plant trees. The number of plants in a row should be equal to the number of rows. So we used the concept of square root and found that the total number of rows will be 45 and the plants in 1 row will be 45.

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