TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Mountain zebras can live up to _ days without drinking water.

SOLUTION: three

PROBLEM: Liquids usually descend in three to five seconds, and solids in _ to twenty seconds.

SOLUTION: eight

PROBLEM: Graphics fall into _ categories, raster and vector.

SOLUTION:
two