@Siya_22100 Your word choice is purposely misleading. People assume it is an adjective meaning half of 100 plus 20. But there is no noun to support half so it must be assumed that “half” is 0.5. 100 divided by 0.5 is 200. Plus 20 is 220.
@Simi_2210_ 12 kids: 11 boys and 1 girl
Assuming 2 parents, unless divorced or death.
So assuming they are all alive and together (and not including cousins or aunts, uncles, or grandparents), the family is 14.