In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[Q]: Females inherit _ X chromosomes, one from each parent.
[A]: two


[Q]: Statistics show, however, that men are _ times more likely to be lefty than women.
[A]: three


[Q]: Substance abuse contributes to _ out of ten instances of child abuse and neglect.
[A]:
seven