TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Porphyritic textures form primarily because of _ rates of cooling.

SOLUTION: two

PROBLEM: Most smokers try to quit at least _ or six times before they succeed, researchers say.

SOLUTION: five

PROBLEM: Chronic unemployment affects _ out of five workers.

SOLUTION:
one