TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Rats multiply _ times as fast as cats.

SOLUTION: four

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

SOLUTION: three

PROBLEM: Minerals can also have two, three, _ or six cleavage planes.

SOLUTION:
four