Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
これは年齢の問題です。この問題を解決する方法がわかりません。私を助けてください。問題は
> A man is 5 times as old as his son. 2 years ago the sum of squares of > their ages was 11, 14. find the present age of son?