It is important to keep a
close eye on all the information’s that are given in the question. Based on
those given information’s the answer can be easily deduced.
The distance traveled by Linda in 3 hours = 4.8 miles Then In 1 hour the distance traveled by Linda = (4.8/3) * 1 miles = 1.6 miles So the speed of Linda is 1.6 miles per hour.
I hope the procedure is simple
enough for you to understand. You can always solve similar kind of problems
using this simple procedure.
D. Because if one time is a certain amount of time away from 12pm and the other one is a certain amout away from 12pm then you add them up and get a number of hours and minutes