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The ages of two friends are in the ratio 3:5. If the sum of their ages is 40 yea

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Question: The ages of two friends are in the ratio 3:5. If the sum of their ages is 40 years, what is the age of the younger friend?

Options:

  1. 12
  2. 15
  3. 18
  4. 20

Correct Answer: 15

Solution: 

Let the ages be 3x and 5x. Then, 3x + 5x = 40, so 8x = 40, x = 5. The younger friend\'s age is 3x = 15 years.

The ages of two friends are in the ratio 3:5. If the sum of their ages is 40 yea

Practice Questions

Q1
The ages of two friends are in the ratio 3:5. If the sum of their ages is 40 years, what is the age of the younger friend?
  1. 12
  2. 15
  3. 18
  4. 20

Questions & Step-by-Step Solutions

The ages of two friends are in the ratio 3:5. If the sum of their ages is 40 years, what is the age of the younger friend?
  • Ratio and Proportion – Understanding how to express relationships between quantities using ratios and how to solve for unknowns using algebra.
  • Algebraic Equations – Setting up and solving linear equations based on given conditions.
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