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

[Q]: American men are _ times more likely to die from prostate cancer than Japanese men.
[A]: five


[Q]: Excess potassium induces larval metamorphosis in _ marine invertebrate species.
[A]: four


[Q]: Rosy barbs grow to _ inches at most.
[A]:
six