Question
There are a total of 10 Greek, Korean and Mongolian stalls at a hawker center. The number of Greek stalls is twice the number of Mongolian stalls. The number of Mongolian stalls is thrice the number of Korean stalls. How many more Greek than Mongolian stalls are there at the hawker center?
4 m

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There are a total of 10 Greek, Korean and Mongolian stalls at a hawker center. The number of Greek stalls is twice the number of Mongolian stalls. The number of Mongolian stalls is thrice the number of Korean stalls. How many more Greek than Mongolian stalls are there at the hawker center?