Ladies' Diary/Ratios of Ages of Groom to Bride

Puzzle

 * A person remarked that upon his wedding day the proportion of his own age to that of his bride was $3$ to $1$,
 * but $15$ years afterwards the proportion of their ages was $2$ to $1$.


 * What were their ages upon the day of their marriage?

Solution
The bride was $15$ and the groom was $45$ when they married.

Outrageous.

Proof
Let $x$ and $y$ be the ages of the bride and groom at their marriage respectively.

We have: