ANSWER: 11
Taking 7 as the first number , we skip three numbers (2,0,7) , we get 8 i.e 7+1
Now taking 2 as the first number , we skip three numbers (0,7,8) , we get 4 i.e 2+2
Similarly taking 0 and skipping 3 numbers (7,8,4) , we get 3 i.e 0+3
Going by this logic , we can say that the next number should be 11 i.e 7+4