Question
There are a total of 30 Greek, Chinese and Korean stalls at a food fair. The number of Greek stalls is twice the number of Korean stalls. The number of Korean stalls is thrice the number of Chinese stalls. How many more Greek than Korean stalls are there at the food fair?
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There are a total of 30 Greek, Chinese and Korean stalls at a food fair. The number of Greek stalls is twice the number of Korean stalls. The number of Korean stalls is thrice the number of Chinese stalls. How many more Greek than Korean stalls are there at the food fair?