Age Problem 年齢算😸

　前回は仕事算について英語で取り上げた。今回は年齢算についてである。

Question: Now Shintaro is 11 years old and Shintaro's father is 45 years old. From now, how many years after will Shintaro's father's age be 3 times Shintaro's age. 

How to Solve: The difference between the age of Shintaro's father and Shintaro is always 34 years. The difference in the two's age will be 2 times Shintaro's age when Shintaro's father's age becomes 3 times Shintaro's age. 

 When Shintaro's father's age is 3 times Shintaro's age, Shintaro is 17 years old. Now, Shintaro is 11 years old, so 6 years later.  

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