其它
Chloe is buying candies at a grocery store. She can either spend $8$ dollars on a $15$ ounce bag or $12$ dollars on a $20$ ounce bag. Which is a better buy? 
Overseas Competition->Knowledge Point->Word Problem Modules->Unitary Method Problems->Finding the Unit Rate and then the Total Value
$\frac{8\text{dollars}}{15\text{ounces}}$  $\frac{12\text{dollars}}{20\text{ounces}}$ 