Question
There are a total of 20 Mongolian, Egyptian and Indian stalls at a food center. The number of Mongolian stalls is twice the number of Indian stalls. The number of Indian stalls is thrice the number of Egyptian stalls. How many more Mongolian than Indian stalls are there at the food center?
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There are a total of 20 Mongolian, Egyptian and Indian stalls at a food center. The number of Mongolian stalls is twice the number of Indian stalls. The number of Indian stalls is thrice the number of Egyptian stalls. How many more Mongolian than Indian stalls are there at the food center?