Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> In grade 6, 5 students play the piano,10 play the cello, and 6 play the guitar.
A musical concert is about to take place in the school. Ms. Emily, the music teacher, wants to find the ratio of the students playing the piano to cello to guitar. Let's help her calculate!

• A. $10:5:6$
• B. $5:10:6$
• C. $15:10:6$
• D. $6:10:15$

Answer 1

The correct option is B $5:10:6$

Number of students playing the piano $=5$

Number of students playing the cello $=10$

Number of students playing the guitar $=6$

$\therefore$ The ratio of students playing the piano to students playing the cello = $5:10$

Similarly, the ratio of students playing the cello to students playing the guitar = $10:6$

The term ${}^{\prime }{10}^{\prime }$ is common in both the ratios, which means the two ratios can be combined to form a single ratio.

$5:10:6$ is the answer.