Hard
Find the next number in the series: 16, 21, 26, 31, ?
Explanation
Explanation
Each term increases by a constant difference of 5 (i.e. 21-16=5, 26-21=5, and so on). Continuing the pattern, the next term = 31 + 5 = 36.
PRO TIP
Re-check your working by substituting the answer back into the original question.