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

[EX Q]: Silks are susceptible to infection during the first _ days after initiation.
[EX A]: five

[EX Q]: Lemurs are very social and travel in troops of _ to thirty.
[EX A]: three

[EX Q]: Small tadpoles hatch out after two to _ weeks.
[EX A]:
three