A is twice as old as B. If B is 10 years old, how old is A?
Correct Answer: 20 years old
- Step 1: Identify B's age. B is 10 years old.
- Step 2: Understand that A is twice as old as B.
- Step 3: Calculate A's age by multiplying B's age by 2. So, A's age = 2 * 10.
- Step 4: Perform the multiplication. 2 * 10 = 20.
- Step 5: Conclude that A is 20 years old.
- Age Relationship – Understanding the relationship between the ages of two individuals based on given conditions.
- Basic Arithmetic – Applying multiplication to find the age of one individual based on the age of another.