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

[EX Q]: Ospreys reach sexual maturity between _ and five years of age.
[EX A]: three

[EX Q]: Double price is based on two golfers sharing _ room.
[EX A]: one

[EX Q]: Platelets have a short life-span of just _ days .
[EX A]:
five