Medium
Find the next number in the series: 13, 21, 29, 37, ?
Explanation
Explanation
Each term increases by a constant difference of 8 (i.e. 21-13=8, 29-21=8, and so on). Continuing the pattern, the next term = 37 + 8 = 45.
PRO TIP
Re-check your working by substituting the answer back into the original question.