Question

please tell me if these are right.
Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb. mixture that is 11% protein? 80 pounds soybean and 160 pounds of cornmeal

Trains A and B are traveling in the sme direction on parallel tracks. Train A is traveling at 80 miles per hour and train B is traveling at 90 miles per hour. Train A passes a station at 4:10 pm. If train B passes the same station at 4:22PM, at what time will train B catch up to train A? The answer is 5:58

Answer 1

S+C=240
.12S+.06C=.11*240

Your answer is wrong.

ok, the initial distance between them is 12min/60min*80miles=16miles check that.

Now how long does the trainB take to catch up: distance/relative velocity
= 16miles/10mph=1.6hr or 1hr36min or
you got it right.