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A conservation area is designed to protect 150 species of plants. If 10% of thes

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Question: A conservation area is designed to protect 150 species of plants. If 10% of these species are endangered, how many species are endangered?

Options:

  1. 10
  2. 15
  3. 20
  4. 25

Correct Answer: 15

Solution: 

Endangered species = 10% of 150 = 0.1 * 150 = 15.

A conservation area is designed to protect 150 species of plants. If 10% of thes

Practice Questions

Q1
A conservation area is designed to protect 150 species of plants. If 10% of these species are endangered, how many species are endangered?
  1. 10
  2. 15
  3. 20
  4. 25

Questions & Step-by-Step Solutions

A conservation area is designed to protect 150 species of plants. If 10% of these species are endangered, how many species are endangered?
  • Step 1: Understand that there are 150 species of plants in the conservation area.
  • Step 2: Know that 10% of these species are endangered.
  • Step 3: To find 10% of 150, convert 10% to a decimal. 10% as a decimal is 0.1.
  • Step 4: Multiply the total number of species (150) by the decimal (0.1).
  • Step 5: Calculate 0.1 * 150, which equals 15.
  • Step 6: Conclude that there are 15 endangered species.
  • Percentage Calculation – Understanding how to calculate a percentage of a total quantity.
  • Basic Arithmetic – Applying multiplication to find a specific portion of a number.
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