19. Jim paddles from one shore of a lake three miles wide at 4 mph, and John paddles from the opposite shore at 5 mph. How long will they travel before they meet?

Question

    A. 20 minutes B. 27 minutes C. 1 hour, 24 minutes D. 3 hours 

Jim is 1 mile away from John,so that means that it should take Jim at least an hour or two to get to John.I don't know if I expand this the right way. 
Then this answer will have to be C or D for sure,if not please correct me. 
Thank you any help is appreciated.

Answer 1

I believe the answer is A.

Also, please look at the first three Related questions for this problem.

I hope this helps! :)

Answer 2

Thanks

Answer 3

You're welcome, Sarah. I don't really know how to explain it, so once I saw this was in the Related Questions, I knew that an actual tutor would be better.