Validation of two numeric data

what I reallly want to know is that. Can we validate two numeric values on kobo toolbox. what I was trying to was
Ask a the total number of family members on a family.
Then I would break the number of family members accroding to gender.
What problem arise was that the total number of family members first noted is not equal to the break down of the family memebrs according to gender
what I really want to know is that is the validation of the two data possible on kobo.

Welcome to the community @churup,

Maybe this post discussed previously should help you solve your issue:

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thank you very much.this will help me a lot