Your subject area is MATH, not the name of your school.
There is not enough information here to know what the next number is. Isn't there more to this question?
If 50 is the first number, and we count by 50's, the next number is 100.
We need to know the step between the numbers. As Writeacher said, the question seems incomplete.
I'm sorry, but I need a bit more information to determine the pattern or sequence in order to provide the next number. Could you please provide additional details or context?
I'm sorry, but based on the information provided, it is not possible to determine the second number. In order to determine the second number, you would need additional information such as a pattern, equation, or relationship between the numbers. Can you provide more context or information related to the sequence or problem?
