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If the ratio of boys to girls in a class is 3:2 and there are 30 boys, how many

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Question: If the ratio of boys to girls in a class is 3:2 and there are 30 boys, how many girls are there?

Options:

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

Correct Answer: 20

Solution: 

Let the number of girls be x. Then, 3/2 = 30/x => x = (2/3) * 30 = 20.

If the ratio of boys to girls in a class is 3:2 and there are 30 boys, how many

Practice Questions

Q1
If the ratio of boys to girls in a class is 3:2 and there are 30 boys, how many girls are there?
  1. 20
  2. 25
  3. 15
  4. 10

Questions & Step-by-Step Solutions

If the ratio of boys to girls in a class is 3:2 and there are 30 boys, how many girls are there?
  • Ratio and Proportion – Understanding and applying the concept of ratios to find unknown quantities.
  • Algebraic Manipulation – Using algebra to solve for a variable in a proportion.
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