Question 1059311
Your exercise is the same kind of form as another very similar exercise recently solved.  What are known and unknown are different between the two but the form is otherwise the same.


Check this one very thoroughly for help:
<a href="https://www.algebra.com/algebra/homework/word/misc/Miscellaneous_Word_Problems.faq.question.1059114.html">https://www.algebra.com/algebra/homework/word/misc/Miscellaneous_Word_Problems.faq.question.1059114.html, Travel with and against river current, equal times, but different distances</a>