Question 8. On Nadia's smartphone, this diagram shows how much time she spent last week on each of her apps. This week, she halved the time spent on two of these apps, but spent the same amount of time on the other two apps. Which of the following could be the diagram for this week? First, let's look at the diagram for last week. Let's label the values. We get 4, 2, 2, and 1. Now we can start looking at the different solutions. Let's start with A. We can label these values as 2, 1, 1, and a half. We see here that all four of them are halved, so this will not be the answer, since we are looking for a graph with two halved and two left alone. Next, we can look at solution B. We see that we get 4, 2, 1, and 1. Here, we see that only one of the apps have been halved, so this will not be the solution. Next, we can take a glance at C, and we get 2, 2, 1, and 1. Here, we notice that the top app went from 4 to 2, the next app stayed at 2, then the other app, the third one, went from 2 to 1, and the last app remained 1 to 1. So we had two apps stay, and two apps halved. So the answer will be C.

app usage

diagram representation

halved time

solution analysis

Nadia