SOLUTION: There are 18 pieces of chalk the ratio ofcalk that is yellow to chalk that is not yellow is 1:2. How many pieces of chalk are yellow?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: There are 18 pieces of chalk the ratio ofcalk that is yellow to chalk that is not yellow is 1:2. How many pieces of chalk are yellow?      Log On


   



Question 993162: There are 18 pieces of chalk the ratio ofcalk that is yellow to chalk that is not yellow is 1:2. How many pieces of chalk are yellow?
Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
Since the ratio of yellow to not yellow is 1:2
so for 1+2 = 3 pieces of chalk, 1/(1+2) or 1/3 of the chalk is yellow.
So 1/3 * 18 = 6 is the number of pieces of yellow chalk.