Question
Kirk is taking an exam and has 1
1
2
hours to complete the test. He has used
1
3
of his time already.
How much time has Kirk used already on the test?
mc001-1.jpg an hour
mc001-2.jpg an hour
mc001-3.jpg an hour
mc001-4.jpg an hour
1
2
hours to complete the test. He has used
1
3
of his time already.
How much time has Kirk used already on the test?
mc001-1.jpg an hour
mc001-2.jpg an hour
mc001-3.jpg an hour
mc001-4.jpg an hour
Answers
GPT-4o mini
Kirk has 1.5 hours (or 1 hour and 30 minutes) to complete the test. If he has used \(\frac{1}{3}\) of his time already, we can calculate how much time he has used.
First, we find \(\frac{1}{3}\) of 1.5 hours:
\[
\text{Time used} = \frac{1}{3} \times 1.5 \text{ hours}
\]
To make the calculation easier, we can convert 1.5 hours to a fraction:
\[
1.5 \text{ hours} = \frac{3}{2} \text{ hours}
\]
Now, calculate \(\frac{1}{3} \times \frac{3}{2}\):
\[
\frac{1}{3} \times \frac{3}{2} = \frac{1 \times 3}{3 \times 2} = \frac{3}{6} = \frac{1}{2} \text{ hours}
\]
Thus, Kirk has used \(\frac{1}{2}\) hour, which is equivalent to 30 minutes.
Therefore, the answer is:
**\(\frac{1}{2}\) hour**
First, we find \(\frac{1}{3}\) of 1.5 hours:
\[
\text{Time used} = \frac{1}{3} \times 1.5 \text{ hours}
\]
To make the calculation easier, we can convert 1.5 hours to a fraction:
\[
1.5 \text{ hours} = \frac{3}{2} \text{ hours}
\]
Now, calculate \(\frac{1}{3} \times \frac{3}{2}\):
\[
\frac{1}{3} \times \frac{3}{2} = \frac{1 \times 3}{3 \times 2} = \frac{3}{6} = \frac{1}{2} \text{ hours}
\]
Thus, Kirk has used \(\frac{1}{2}\) hour, which is equivalent to 30 minutes.
Therefore, the answer is:
**\(\frac{1}{2}\) hour**