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A's age is three times B's age. If B is 15 years old, how old is A?

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Question: A\'s age is three times B\'s age. If B is 15 years old, how old is A?

Options:

  1. 30
  2. 45
  3. 25
  4. 20

Correct Answer: 30

Solution: 

If B is 15 years old, then A is 3 * 15 = 45 years old.

A's age is three times B's age. If B is 15 years old, how old is A?

Practice Questions

Q1
A's age is three times B's age. If B is 15 years old, how old is A?
  1. 30
  2. 45
  3. 25
  4. 20

Questions & Step-by-Step Solutions

A's age is three times B's age. If B is 15 years old, how old is A?
  • Step 1: Identify B's age. B is 15 years old.
  • Step 2: Understand that A's age is three times B's age.
  • Step 3: Calculate A's age by multiplying B's age by 3. So, A's age = 3 * 15.
  • Step 4: Perform the multiplication: 3 * 15 = 45.
  • Step 5: Conclude that A is 45 years old.
  • Age Relationship – Understanding the relationship between the ages of two individuals based on a given ratio.
  • Multiplication – Applying multiplication to find the age of one individual based on the age of another.
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