<u>Option D
</u>
<u>ANSWER: </u>
9 scoops of red sand for every 6 scoops of blue sand maintains the ratio Ross wants.
<u>SOLUTION:
</u>
Given, Ross is making colored sand for an art project.
He mixes 3 scoops of red sand for every 2 scoops of blue sand.
First, let us calculate the ratio of given information.
ratio of red sand to blue sand = 3 : 2
Now, let us check the options.
<u>A. 12 scoops of red sand for every 9 scoops of blue sand
</u>
Here, ratio of red sand to blue sand = 12 : 9 = 4 : 3
This ratio does not matches with our ratio. So this is not correct option.
<u>B. 10 scoops of red sand for every 8 scoops of blue sand </u>
Here, ratio of red sand to blue sand = 10 : 8 = 5 : 4
This ratio does not matches with our ratio. So this is not correct option
<u>C. 8 scoops of red sand for every 12 scoops of blue sand </u>
Here, ratio of red sand to blue sand = 8 : 12 = 2 : 3
This ratio does not matches with our ratio. So this is not correct option
<u>
D. 9 scoops of red sand for every 6 scoops of blue sand
</u>
Here, ratio of red sand to blue sand = 9 : 6 = 3 : 2
This ratio matches with our ratio. So this is correct option.
Hence, correct option is D.
