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A study shows that 10% of the 800 species in a rainforest are endemic. How many

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Question: A study shows that 10% of the 800 species in a rainforest are endemic. How many endemic species are there?

Options:

  1. 70
  2. 80
  3. 90
  4. 100

Correct Answer: 80

Solution: 

10% of 800 is 80, so there are 80 endemic species.

A study shows that 10% of the 800 species in a rainforest are endemic. How many

Practice Questions

Q1
A study shows that 10% of the 800 species in a rainforest are endemic. How many endemic species are there?
  1. 70
  2. 80
  3. 90
  4. 100

Questions & Step-by-Step Solutions

A study shows that 10% of the 800 species in a rainforest are endemic. How many endemic species are there?
  • Step 1: Understand that 10% means 10 out of every 100.
  • Step 2: Find out how many groups of 100 are in 800. This is done by dividing 800 by 100, which equals 8.
  • Step 3: Since there are 8 groups of 100 in 800, we can find 10% by multiplying 8 (the number of groups) by 10 (the percentage).
  • Step 4: Calculate 8 times 10, which equals 80.
  • Step 5: Therefore, there are 80 endemic species in the rainforest.
  • Percentage Calculation – Understanding how to calculate a percentage of a total quantity.
  • Endemic Species – Knowledge of what endemic species are and their significance in biodiversity.
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