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In a biodiversity hotspot, 600 species were identified. If 20% are reptiles, how

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Question: In a biodiversity hotspot, 600 species were identified. If 20% are reptiles, how many reptiles are there?

Options:

  1. 100
  2. 120
  3. 140
  4. 160

Correct Answer: 120

Solution: 

20% of 600 is 0.20 * 600 = 120.

In a biodiversity hotspot, 600 species were identified. If 20% are reptiles, how

Practice Questions

Q1
In a biodiversity hotspot, 600 species were identified. If 20% are reptiles, how many reptiles are there?
  1. 100
  2. 120
  3. 140
  4. 160

Questions & Step-by-Step Solutions

In a biodiversity hotspot, 600 species were identified. If 20% are reptiles, how many reptiles are there?
  • Step 1: Understand that 20% means 20 out of every 100.
  • Step 2: To find 20% of 600, first convert 20% to a decimal. 20% as a decimal is 0.20.
  • Step 3: Multiply the total number of species (600) by the decimal (0.20).
  • Step 4: Calculate 0.20 * 600, which equals 120.
  • Step 5: Conclude that there are 120 reptiles in the biodiversity hotspot.
  • Percentage Calculation – Understanding how to calculate a percentage of a total quantity.
  • Basic Arithmetic – Applying multiplication to find a portion of a number.
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