Question 522519
Martha --speed = 4mph---10.00 am

Carol----speed ---6mph---12.00 noon

x/4-2=x/6

x/4-x/6=2
(6x-4x)/24=2
2x=48
x=24 distance where she catches up

Carol distance =24
carol speed = 6

carol time = 4 hours

reduce by 1 hour

carol time will be 3 hours
distance = 24miles
speed = 24/3 = 8 mph