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