Lord of all, in this problem, three pairs of numbers are connected through a mathematical operation to a common answer. What is the missing number? 4,5,6 ..., 10, 12,15

Answer: 8

Step-by-step explanation:

Hi, to answer this question we have to analyze the sequence given:

4, 5, 6 ..., 10, 12, 15

So, the rule of the sequence is that at the third time adding values, we are adding a unit more:

4 4+1 = 5 5+1 = 6 6 + 2 = 8 (third time, we add 2 instead of 1) 8+2=10, 10+2 = 12 12+3 = 15 (third time, we add 3)

The missing number is 8.

Feel free to ask for more if needed or if you did not understand something.