It is: 20-11 = 9 and 3*9 = 27
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the next number to the sequence 2 5 11 20 32 47 is 65 the difference between 2 and 5 is 3, diff. of 5 and 11 is 6, 11 and 20, 9, 20 and 32, 12, 32 and 47, 15... the difference between each number increases by 3. that is with the initial difference of 2 and 5 is 3, get the difference of 2 and 5, 3 and add 3, which will make it six, add it to 5 then you'll get 11. repeat the process then viola.
20 and 11
11/20 divded by 9/20 = 11/9
50 x 3 = 150Note: thrice is three.
Thrice.