Question 519252
x/50+x/48 = 4 9/10 hours => 49/10 hours

LCD =50*48.multiply by the LCD

(48x+50x)/2400=49/10

98x/2400=49/10

cross multiply

98x=2400*49/10

98x=2400*49/10
x= 2400*49/98*10
x= 120 miles