00:01
Hello there, so let's take a look at this problem.
00:04
The ferry schedule shows that the ferry departs at regular intervals.
00:07
Use the fourth step process to find the earliest time this person can catch the ferry if he cannot leave until 1 .30 p .m.
00:16
So we need to be using the four step problem, four step process for this problem.
00:21
So the first step is to explore.
00:24
So let's just pick out important pieces of information that we will need to solve this problem.
00:28
So we know that the ferry departs at regular intervals.
00:31
So we know that the ferry departs at regular intervals.
00:31
So we know that the ferry departs at regular intervals.
00:31
So that.
00:32
This will be important when we're finding the pattern in the departure time to predict the time he can leave.
00:37
And then another part is he cannot leave until 1 .30 p .m.
00:40
So we have to find a time after 1 .30 p .m.
00:43
But also somewhat close to that number.
00:48
So i think that's done with the exploring step.
00:51
And two, for the planning step, i think we already kind of discussed this.
00:55
We need to find what the regular interval is that the ferry departs at.
00:59
So i think we have a pretty good plan.
01:02
Put that into action by solving the problem.
01:06
So as we can see here in these departure times, the difference between 933 and 845 is 48 minutes.
01:14
So from this, it looks like a regular interval is going to be 48 minutes.
01:18
So the ferry leaves every 48 minutes...