A forest area of 35 hectares contains 1100 trees. The recommended density for sustainable growth is 40 trees per hectare. How many more trees should be planted to reach this density?
Answer
300 trees
The correct answer is 300 trees — State that 300 trees need to be planted to reach the recommended density.
Step-by-step solution
- Compute the desired total number of trees: 35 hectares × 40 trees/hectare = 1400 trees.
- Subtract the current number of trees from the desired total: 1400 – 1100 = 300 trees.
- State that 300 trees need to be planted to reach the recommended density.
Common mistake: Calculating density incorrectly by dividing instead of multiplying
Concept tested: Tree density calculation for conservation
Published · How this solution was prepared and checked
← All Conservation of Plants and Animals questions