It is: 20 because 5+8+20 = 33 and 33/3 = 11
20
20
It is 5 and 11/20 in its simplest form
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.
165
1 and 5.
20
1, 2, 4, 5, 10, 20.
A number sequence is not a question. So there can be no "answer".
Their LCM is 495
55 (11 x 5 = 55) 20% is also one fifth so you multiply by 5 to get your answer