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

[Q]: Comets are a bit like giant dirty ice-balls with diameters between _ and fifty kilometres.
[A]: five

[Q]: Aquatic adults have prominent red reathery gills, are large, and have _ toes on each foot.
[A]: four

[Q]: Job sharing allows _ employees to share one position.
[A]:
two