Allison drove home at 58 mph, but her brother Austin, who left at the same time, could drive at only 40 mph. When Allison arrived, Austin still had 108 miles to go. How far did Allison drive?

Answer 1

let their times be t hrs

Allison went 58t miles
Austin went 40t miles
58t - 40t = 108
18t = 108
t = 6

Allison went 58(6) or 348 miles

check:
Austin only went 240 miles in those 6 hrs, which is 108 less than Allison

Answer 2

European exploration