Question 1191012
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I sincerely hope this is an attempt to translate a problem into English from another language....  The language, grammar, and punctuation are atrocious.<br>
If the product of two ages is 21, then the ages are either 7 and 3 or 21 and 1.  The sum of 1 and 21 is 22.<br>
So if the statement of the problem is supposed to say that the product of their ages is 21 and the sum is 22, then the older sister is 21 and the younger sister is 1.<br>
But I have no idea if that is what the problem is supposed to say.<br>