Identify a pattern in the given list of numbers. Then use this pattern to find the next number.​ (More than one pattern might​ exist, so it is possible that there is more than one correct​ answer.)

61
​,
51
​,
41
​,
31
​,
21
​,
          

1 answer

The pattern is that each number is decreasing by 10. The next number would be 11.