Brain Test Level 271
Level 271: How many numbers are there?
This level is a counting trick. You need to count the unique set of digits that make up the numerical system.
If the screen displays various numerals, the question usually refers to the foundational digits available.
Solution:
The fundamental digits (numbers) we use are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.
There are 10 unique numbers in this set.
DIFFICULTY
Medium
PRO TIP
Count the types of digits available in our counting system (0 through 9).