TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Men are _ times as likely as women to complete suicide.

SOLUTION: three

PROBLEM: Some manatees have _ or four nails on the tip of each flipper.

SOLUTION: three

PROBLEM: Brazil leads the world with more than _ billion gallons of ethanol produced each year.

SOLUTION:
four