Question

There is a square field of side 45m. There is a well in this field of area of 5 sq. metre.
In the remaining part, we plant coconut trees at the rate of one plant per sq.metre .
How many trees can be planted in the field? If the cost of planting one tree is Rs. 75. What is the total cost of planting the trees?

Answer 1

Answer:

The Number of trees = 2020 trees

The total cost of planting trees = Rs. 151500

Step-by-step explanation:

Given,

• The side of square field = 45m
• The area of well 5 sq. m.
• The area of 1 coconut tree is 1 sq. m.
• The cost of planting 1 tree is Rs. 75.

To Find,

• The Number of Coconut trees.
• The cost of planting the Coconut trees.

Solution,

The area of Square field = Side × Side

→ The area of Square field = 45m × 45m

The area of Square field = 2025 sq. m

The area of well = 5 sq. m

The area that all trees occupies = 2025 sq. m - 5 sq. m

The Total area that all trees occupies = 2020 sq. m

The Number of trees = The total area that all trees occupies / The Area covered by 1 tree

→ The Number of trees = 2020 sq. m / 1 sq. m

The Number of trees = 2020 trees

The cost of planting trees = Rs. 75 per tree

The total cost of planting trees = 2020 trees × Rs. 75 / trees

The total cost of planting trees = Rs. 151500

Required Answer,

• The Number of trees = 2020 trees
• The total cost of planting trees = Rs. 151500

Answer 2

• The number of trees 2020 trees!

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