Example:

Jonah left home at 6:30 a.m to go to work. He arrives at work 7:15 a.m. At what time did he arrive at work?

** Answer**:

6:30 and time taken = 7:15

Let time taken to arrive to work be *t*

** Equation**: 6:30 + t = 7:15

6:30 + t = 7:15

t = 7:15 – 6: 30

t = 45 minutes

Answer = Time taken is 45 minutes.