Representing Ratios

Q. There are 3 gold coins and 7 silver coins in Bella's coin collection. What is/are the different way(s) to represent the ratio of the number of gold coins to the number of silver coins?

1. $3:7$
2. $\frac{3}{7}$
3. $7\text{to}3$
4. $3\text{to}7$

Q. Which of the following indicates the ratio of the rectangle to the pentagon?

1. $5\text{to}4$
2. $4\text{to}9$
3. $4\text{to}5$
4. $5\text{to}9$

Q. Choose the figure in which the ratio of apples to bananas is $3:2.$

1. 
2. 
3. 
4. 

Q. The ratio $18:21$ can also be written as

1. $\frac{18}{21}$
2. $18\text{to}21$
3. $\frac{6}{7}$
4. $6:7$

Q. <!--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!

1. $10:5:6$
2. $5:10:6$
3. $15:10:6$
4. $6:10:15$