Originally Posted by

**Beastkun** A stream has a current of 4mph. Find the speed of Joe's boat in still water if it goes 40mph downstream in the same time it takes to go 24 miles upstream.

I think I solved this correctly but I would like a second opinion/verification.

-------------------------D----- R ------ T

UP---------------------24---- 4-x

DOWN -----------------40 --- 4+x

so 24/4-x = 40/4+x

96+24x=160-40x

24x=64-40x

64x=64

x=1?

Something about this problem seems off, but I'm not sure... any tips or verification would be nice.