Question 898579
John travels x miles to meet Mary at 60 mph

Mary travels 200-x miles at 40 mph

t= d/r

x/60 = (200-x)/40
40x = 60(200-x)

40x = 12000-60x

100x= 12000

x= 120 miles

they are 20 miles away from mid point

they meet after 2 hours