What is the next number in the series, 15, 45, 75, 105?
What is the next number in the series, 15, 45, 75, 105?
Explanation
The pattern increases by 30:
15 + 30 = 45
45 + 30 = 75
75 + 30 = 105
105 + 30 = 135.
The pattern increases by 30:
15 + 30 = 45
45 + 30 = 75
75 + 30 = 105
105 + 30 = 135.