Question
Jennifer bought 12 pens. Out of 12 pens, 7 are blue and the rest are red. What is the ratio of the number of red pens to the total number of pens?
Answers
GPT-4o mini
Jennifer bought a total of 12 pens, out of which 7 are blue. To find the number of red pens, we subtract the number of blue pens from the total number of pens:
\[
\text{Number of red pens} = \text{Total pens} - \text{Blue pens} = 12 - 7 = 5
\]
Now, we need to find the ratio of the number of red pens to the total number of pens. The ratio can be expressed as:
\[
\text{Ratio of red pens to total pens} = \frac{\text{Number of red pens}}{\text{Total pens}} = \frac{5}{12}
\]
The ratio of the number of red pens to the total number of pens is \( \frac{5}{12} \).
\[
\text{Number of red pens} = \text{Total pens} - \text{Blue pens} = 12 - 7 = 5
\]
Now, we need to find the ratio of the number of red pens to the total number of pens. The ratio can be expressed as:
\[
\text{Ratio of red pens to total pens} = \frac{\text{Number of red pens}}{\text{Total pens}} = \frac{5}{12}
\]
The ratio of the number of red pens to the total number of pens is \( \frac{5}{12} \).