"Bob Engelhardt" wrote: I hope that wasn't the exact phrasing of the
question, because it is unanswerable in that form. (clip)
^^^^^^^^^^^^^^^^^^^^
You are absolutely right, Bob. Usually, questions like this say (or imply),
"all other things being equal." But what are the other things? Equal
energy in both streams? Equal volume in both streams? Equal temperature?
etc. Usually, if the question is on a test for a course, you will be able
to guess what is wanted, just from the past lectures.

You will usually have the most trouble answering questions written by
someone less intelligent than you. They don't see many of the possibilities
that you do.