Answer:
4, 9, 14, 19, 24, 29, 34, 39, 44, 49 and so on.
Step-by-step explanation:
1. If we use the rule starting from 4, we can add 15. That will give us 19.
2. Subtract 10, that will give us 9.
Now if we keep applying this rule we will keep going on to an infinite possibility of numbers.
So, the next number would be 9, then so on.
