How many unique values are possible using a single binary digit?

How many bits are needed to represent 32 unique values in binary?Question 4Answera.4b.5c.6d.7

In how many ways a binary code consisting of 12 binary digits can be created, so that 10 or more digits are 1s?

What is the equivalent decimal value given a binary number of 11001010?

A text-editing application uses binary sequences to represent each of 200 different characters. What is the minimum number of bits needed to assign a unique bit sequence to each of the possible characters?

The number of natural numbers are their from 1 to 1000 which have none of their digits repeated, is–