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Three years ago, A was 5 times as old as B. If B is now 10 years old, how old is
Three years ago, A was 5 times as old as B. If B is now 10 years old, how old is A now?
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Three years ago, A was 5 times as old as B. If B is now 10 years old, how old is A now?
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Three years ago, B was 7 years old. Therefore, A was 5 * 7 = 35 years old. Now, A is 35 + 3 = 38 years old.
Questions & Step-by-step Solutions
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Q: Three years ago, A was 5 times as old as B. If B is now 10 years old, how old is A now?
Solution:
Three years ago, B was 7 years old. Therefore, A was 5 * 7 = 35 years old. Now, A is 35 + 3 = 38 years old.
Steps: 3
Show Steps
Step 1: Determine B's age three years ago. Since B is now 10 years old, three years ago B was 10 - 3 = 7 years old.
Step 2: Find A's age three years ago. According to the question, A was 5 times as old as B three years ago. So, A's age was 5 * 7 = 35 years old.
Step 3: Calculate A's current age. Since three years have passed since then, A's current age is 35 + 3 = 38 years old.
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