Question

Grade Guitar Bass Drums Keyboard
6th grade 18 18 13 12
7th Grade 13 19 15 12
8th Grade 12 20 14 20

What percent of the 6th graders in the School of Rock play drums? Round your answer to the nearest whole number percent.

Answer 1

To find the percentage of 6th graders who play drums, we need to follow these steps:

1. Find the total number of 6th graders.
2. Find the number of 6th graders who play drums.
3. Calculate the percentage of 6th graders who play drums.

From the given data for 6th graders:
- Number of 6th graders who play drums = 13
- Number of 6th graders who play guitar = 18
- Number of 6th graders who play bass = 18
- Number of 6th graders who play keyboard = 12

Now, let's calculate the total number of 6th graders:

\[
\text{Total 6th graders} = 18 \text{ (guitar)} + 18 \text{ (bass)} + 13 \text{ (drums)} + 12 \text{ (keyboard)} = 61
\]

Next, we will find the percentage of 6th graders who play drums:

\[
\text{Percentage of 6th graders who play drums} = \left( \frac{\text{Number of 6th graders who play drums}}{\text{Total 6th graders}} \right) \times 100
\]

Substituting the values:

\[
\text{Percentage} = \left( \frac{13}{61} \right) \times 100 \approx 21.31
\]

Rounding to the nearest whole number:

\[
\text{Percentage} \approx 21\%
\]

Therefore, approximately **21%** of the 6th graders in the School of Rock play drums.