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

[Q]: Osteoporosis is _ to four times more common in woman than men.
[A]: three


[Q]: Monkeys are much more resistant and can live up to _ minutes.
[A]: five


[Q]: Every oxygen links to _ silica tetrahedron and three ferromagnesian octahedra.
[A]:
one