TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Dingoes live to _ or six years of age in the wild and fifteen years in captivity.

SOLUTION: five

PROBLEM: Most people see the world through _ types of visual-receptor cells.

SOLUTION: four

PROBLEM: Fire extinguishers have _ parts.

SOLUTION:
seven