Find the next three terms in the pattern 20,40,60,11,31,51,......

Not enough data to tell

for the first 3, there is an increase of 20 from one to the other
for the last three, there is the same increase but we can't tell what happened from term3 to term4

Is this correct

71,22,44

To find the next three terms in the given pattern, we need to identify the pattern or rule that generates the sequence of numbers. Looking at the provided sequence, it appears that the pattern alternates between two different progressions.

The first progression seems to be an increment of 20, where each number is 20 greater than the previous one:
20, 40, 60, ...

The second progression seems to be an increment of 10, where each number is 10 greater than the previous one:
11, 31, 51, ...

To continue the pattern, let's first find the next number in each of the two progressions:

First progression (increment of 20):
The next number after 60 would be 60 + 20 = 80.

Second progression (increment of 10):
The next number after 51 would be 51 + 10 = 61.

So, the next two numbers in the sequence are 80 and 61.

To find the third number, we need to determine which progression the numbers are following. From the given sequence, it seems that the progression alternates between the two progressions. Therefore, the third number will follow the first progression.

Third progression (increment of 20):
The next number after 80 would be 80 + 20 = 100.

Therefore, the next three terms in the pattern are 80, 61, and 100.